25769904996512 has 24 divisors (see below), whose sum is σ = 52371097252992. Its totient is φ = 12469308868800.

The previous prime is 25769904996469. The next prime is 25769904996533. The reversal of 25769904996512 is 21569940996752.

It is a super-2 number, since 2×25769904996512² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25769904996512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12988862414 + ... + 12988864397.

It is an arithmetic number, because the mean of its divisors is an integer number (2182129052208).

Almost surely, 2^{25769904996512} is an apocalyptic number.

It is an amenable number.

25769904996512 is an abundant number, since it is smaller than the sum of its proper divisors (26601192256480).

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

25769904996512 is a wasteful number, since it uses less digits than its factorization.

25769904996512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25977726852 (or 25977726844 counting only the distinct ones).

The product of its (nonzero) digits is 661348800, while the sum is 74.

The spelling of 25769904996512 in words is "twenty-five trillion, seven hundred sixty-nine billion, nine hundred four million, nine hundred ninety-six thousand, five hundred twelve".