12376023640 has 64 divisors (see below), whose sum is σ = 28424584800. Its totient is φ = 4847910912.

The previous prime is 12376023637. The next prime is 12376023641. The reversal of 12376023640 is 4632067321.

It is a super-2 number, since 2×12376023640² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12376023596 and 12376023605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12376023641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188376 + ... + 1198744.

Almost surely, 2^12376023640 is an apocalyptic number.

12376023640 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 12376023640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14212292400).

12376023640 is an abundant number, since it is smaller than the sum of its proper divisors (16048561160).

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

12376023640 is a wasteful number, since it uses less digits than its factorization.

12376023640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10996 (or 10992 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 12376023640 in words is "twelve billion, three hundred seventy-six million, twenty-three thousand, six hundred forty".