25714688164 has 81 divisors (see below), whose sum is σ = 51095932419. Its totient is φ = 11314860480.

The previous prime is 25714688117. The next prime is 25714688171. The reversal of 25714688164 is 46188641752.

The square root of 25714688164 is 160358.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 20379846564 + 5334841600 = 142758^2 + 73040^2 .

It is a super-2 number, since 2×25714688164² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 130531314 + ... + 130531510.

Almost surely, 2^25714688164 is an apocalyptic number.

25714688164 is the 160358-th square number.

It is an amenable number.

25714688164 is a deficient number, since it is larger than the sum of its proper divisors (25381244255).

25714688164 is a wasteful number, since it uses less digits than its factorization.

25714688164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 247 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The spelling of 25714688164 in words is "twenty-five billion, seven hundred fourteen million, six hundred eighty-eight thousand, one hundred sixty-four".