12864763904 has 96 divisors (see below), whose sum is σ = 26839612800. Its totient is φ = 6157762560.

The previous prime is 12864763871. The next prime is 12864763931. The reversal of 12864763904 is 40936746821.

It is a super-2 number, since 2×12864763904² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6157292 + ... + 6159380.

It is an arithmetic number, because the mean of its divisors is an integer number (279579300).

Almost surely, 2^12864763904 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 12864763904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13419806400).

12864763904 is an abundant number, since it is smaller than the sum of its proper divisors (13974848896).

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

12864763904 is an equidigital number, since it uses as much as digits as its factorization.

12864763904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 12864763904 in words is "twelve billion, eight hundred sixty-four million, seven hundred sixty-three thousand, nine hundred four".