25928728576 has 153 divisors (see below), whose sum is σ = 56615987379. Its totient is φ = 11871977472.

The previous prime is 25928728561. The next prime is 25928728577. The reversal of 25928728576 is 67582782952.

The square root of 25928728576 is 161024.

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 12061310976 + 13867417600 = 109824^2 + 117760^2 .

It is a Duffinian number.

Its product of digits (33868800) is a multiple of the sum of its prime divisors (56).

It is not an unprimeable number, because it can be changed into a prime (25928728577) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 700776430 + ... + 700776466.

Almost surely, 2^25928728576 is an apocalyptic number.

25928728576 is the 161024-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25928728576

25928728576 is an abundant number, since it is smaller than the sum of its proper divisors (30687258803).

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

25928728576 is an frugal number, since it uses more digits than its factorization.

25928728576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 56 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 61.

The spelling of 25928728576 in words is "twenty-five billion, nine hundred twenty-eight million, seven hundred twenty-eight thousand, five hundred seventy-six".