25989638177604 has 48 divisors (see below), whose sum is σ = 62605814132736. Its totient is φ = 8382801252000.

The previous prime is 25989638177603. The next prime is 25989638177617. The reversal of 25989638177604 is 40677183698952.

It is a super-2 number, since 2×25989638177604² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25989638177603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690222 + ... + 7242629.

It is an arithmetic number, because the mean of its divisors is an integer number (1304287794432).

It is a 1-persistent number, because it is pandigital, but 2⋅25989638177604 = 51979276355208 is not.

Almost surely, 2^{25989638177604} is an apocalyptic number.

It is an amenable number.

25989638177604 is an abundant number, since it is smaller than the sum of its proper divisors (36616175955132).

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

25989638177604 is a wasteful number, since it uses less digits than its factorization.

25989638177604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941696 (or 7941694 counting only the distinct ones).

The product of its (nonzero) digits is 1097349120, while the sum is 75.

The spelling of 25989638177604 in words is "twenty-five trillion, nine hundred eighty-nine billion, six hundred thirty-eight million, one hundred seventy-seven thousand, six hundred four".