25840776852 has 36 divisors (see below), whose sum is σ = 71257900896. Its totient is φ = 7830538320.

The previous prime is 25840776847. The next prime is 25840776877. The reversal of 25840776852 is 25867704852.

25840776852 is a `hidden beast` number, since 2 + 584 + 0 + 7 + 7 + 6 + 8 + 52 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32626848 + ... + 32627639.

It is an arithmetic number, because the mean of its divisors is an integer number (1979386136).

Almost surely, 2^25840776852 is an apocalyptic number.

25840776852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25840776852 is an abundant number, since it is smaller than the sum of its proper divisors (45417124044).

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

25840776852 is a wasteful number, since it uses less digits than its factorization.

25840776852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65254508 (or 65254503 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 25840776852 in words is "twenty-five billion, eight hundred forty million, seven hundred seventy-six thousand, eight hundred fifty-two".