25399413810772 has 6 divisors (see below), whose sum is σ = 44448974168858. Its totient is φ = 12699706905384.

The previous prime is 25399413810769. The next prime is 25399413810809. The reversal of 25399413810772 is 27701831499352.

It can be written as a sum of positive squares in only one way, i.e., 25372940568336 + 26473242436 = 5037156^2 + 162706^2 .

It is a super-2 number, since 2×25399413810772² (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 25399413810772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174926726343 + ... + 3174926726350.

Almost surely, 2^{25399413810772} is an apocalyptic number.

It is an amenable number.

25399413810772 is a deficient number, since it is larger than the sum of its proper divisors (19049560358086).

25399413810772 is a wasteful number, since it uses less digits than its factorization.

25399413810772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349853452697 (or 6349853452695 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 25399413810772 in words is "twenty-five trillion, three hundred ninety-nine billion, four hundred thirteen million, eight hundred ten thousand, seven hundred seventy-two".