2521427868 has 18 divisors (see below), whose sum is σ = 6373609424. Its totient is φ = 840475944.

The previous prime is 2521427809. The next prime is 2521427897. The reversal of 2521427868 is 8687241252.

2521427868 is a `hidden beast` number, since 2 + 521 + 42 + 7 + 86 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35019796 + ... + 35019867.

Almost surely, 2^2521427868 is an apocalyptic number.

It is an amenable number.

2521427868 is an abundant number, since it is smaller than the sum of its proper divisors (3852181556).

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

2521427868 is a wasteful number, since it uses less digits than its factorization.

2521427868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70039673 (or 70039668 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 2521427868 is about 50213.8214837310. The cubic root of 2521427868 is about 1361.0753943819.

The spelling of 2521427868 in words is "two billion, five hundred twenty-one million, four hundred twenty-seven thousand, eight hundred sixty-eight".