25479152886 has 32 divisors (see below), whose sum is σ = 55944983808. Its totient is φ = 7671774240.

The previous prime is 25479152857. The next prime is 25479152903. The reversal of 25479152886 is 68825197452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219090 + ... + 1239813.

It is an arithmetic number, because the mean of its divisors is an integer number (1748280744).

Almost surely, 2^25479152886 is an apocalyptic number.

25479152886 is an abundant number, since it is smaller than the sum of its proper divisors (30465830922).

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

25479152886 is a wasteful number, since it uses less digits than its factorization.

25479152886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459076.

The product of its digits is 9676800, while the sum is 57.

The spelling of 25479152886 in words is "twenty-five billion, four hundred seventy-nine million, one hundred fifty-two thousand, eight hundred eighty-six".