2521869912 has 24 divisors (see below), whose sum is σ = 6830064540. Its totient is φ = 840623280.

The previous prime is 2521869907. The next prime is 2521869941. The reversal of 2521869912 is 2199681252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

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, 17512914 + ... + 17513057.

Almost surely, 2^2521869912 is an apocalyptic number.

It is an amenable number.

2521869912 is an abundant number, since it is smaller than the sum of its proper divisors (4308194628).

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

2521869912 is a wasteful number, since it uses less digits than its factorization.

2521869912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35025983 (or 35025976 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 2521869912 is about 50218.2229076259. Note that the first 3 decimals coincide. The cubic root of 2521869912 is about 1361.1549286890.

The spelling of 2521869912 in words is "two billion, five hundred twenty-one million, eight hundred sixty-nine thousand, nine hundred twelve".