25979214852 has 36 divisors (see below), whose sum is σ = 65942192316. Its totient is φ = 8623802880.

The previous prime is 25979214773. The next prime is 25979214857. The reversal of 25979214852 is 25841297952.

25979214852 is a `hidden beast` number, since 2 + 597 + 9 + 2 + 1 + 48 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22977709056 + 3001505796 = 151584^2 + 54786^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (25979214857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1488513 + ... + 1505864.

Almost surely, 2^25979214852 is an apocalyptic number.

It is an amenable number.

25979214852 is an abundant number, since it is smaller than the sum of its proper divisors (39962977464).

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

25979214852 is a wasteful number, since it uses less digits than its factorization.

25979214852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994628 (or 2994623 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 25979214852 in words is "twenty-five billion, nine hundred seventy-nine million, two hundred fourteen thousand, eight hundred fifty-two".