12489423672 has 256 divisors, whose sum is σ = 36723456000. Its totient is φ = 3499891200.

The previous prime is 12489423647. The next prime is 12489423697. The reversal of 12489423672 is 27632498421.

It is an interprime number because it is at equal distance from previous prime (12489423647) and next prime (12489423697).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54538854 + ... + 54539082.

It is an arithmetic number, because the mean of its divisors is an integer number (143451000).

Almost surely, 2^12489423672 is an apocalyptic number.

12489423672 is a gapful number since it is divisible by the number (12) 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 12489423672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18361728000).

12489423672 is an abundant number, since it is smaller than the sum of its proper divisors (24234032328).

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

12489423672 is a wasteful number, since it uses less digits than its factorization.

12489423672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 478 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The spelling of 12489423672 in words is "twelve billion, four hundred eighty-nine million, four hundred twenty-three thousand, six hundred seventy-two".