12539573904 has 240 divisors, whose sum is σ = 39345106752. Its totient is φ = 3392640000.

The previous prime is 12539573903. The next prime is 12539573951. The reversal of 12539573904 is 40937593521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (12539573903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6595354 + ... + 6597254.

Almost surely, 2^12539573904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12539573904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19672553376).

12539573904 is an abundant number, since it is smaller than the sum of its proper divisors (26805532848).

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

12539573904 is a wasteful number, since it uses less digits than its factorization.

12539573904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 12539573904 in words is "twelve billion, five hundred thirty-nine million, five hundred seventy-three thousand, nine hundred four".