2512149814521 has 40 divisors (see below), whose sum is σ = 3978469746944. Its totient is φ = 1576937924640.

The previous prime is 2512149814507. The next prime is 2512149814523. The reversal of 2512149814521 is 1254189412152.

2512149814521 is a `hidden beast` number, since 2 + 5 + 1 + 2 + 1 + 49 + 81 + 4 + 521 = 666.

It is not a de Polignac number, because 2512149814521 - 2²⁵ = 2512116260089 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512149814523) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13426795 + ... + 13612608.

Almost surely, 2^{2512149814521} is an apocalyptic number.

It is an amenable number.

2512149814521 is a deficient number, since it is larger than the sum of its proper divisors (1466319932423).

2512149814521 is a wasteful number, since it uses less digits than its factorization.

2512149814521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27039483 (or 27039474 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The spelling of 2512149814521 in words is "two trillion, five hundred twelve billion, one hundred forty-nine million, eight hundred fourteen thousand, five hundred twenty-one".