12372461640 has 768 divisors, whose sum is σ = 53036605440. Its totient is φ = 2519424000.

The previous prime is 12372461639. The next prime is 12372461641. The reversal of 12372461640 is 4616427321.

12372461640 is a `hidden beast` number, since 1 + 2 + 3 + 7 + 2 + 4 + 6 + 1 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (12372461639) and next prime (12372461641).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12372461595 and 12372461604.

It is not an unprimeable number, because it can be changed into a prime (12372461641) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45654705 + ... + 45654975.

It is an arithmetic number, because the mean of its divisors is an integer number (69058080).

Almost surely, 2^12372461640 is an apocalyptic number.

12372461640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12372461640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26518302720).

12372461640 is an abundant number, since it is smaller than the sum of its proper divisors (40664143800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12372461640 is a wasteful number, since it uses less digits than its factorization.

12372461640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 12372461640 its reverse (4616427321), we get a palindrome (16988888961).

The spelling of 12372461640 in words is "twelve billion, three hundred seventy-two million, four hundred sixty-one thousand, six hundred forty".