2521731296016 has 75 divisors (see below), whose sum is σ = 7298787448183. Its totient is φ = 840558042720.

The previous prime is 2521731295973. The next prime is 2521731296033. The reversal of 2521731296016 is 6106921371252.

The square root of 2521731296016 is 1587996.

It is a perfect power (a square), and thus also a powerful number.

2521731296016 is a `hidden beast` number, since 2 + 5 + 2 + 1 + 7 + 31 + 2 + 9 + 601 + 6 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 57145801 + ... + 57189911.

Almost surely, 2^{2521731296016} is an apocalyptic number.

2521731296016 is the 1587996-th square number.

It is an amenable number.

2521731296016 is an abundant number, since it is smaller than the sum of its proper divisors (4777056152167).

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

2521731296016 is an frugal number, since it uses more digits than its factorization.

2521731296016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88242 (or 44116 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 2521731296016 in words is "two trillion, five hundred twenty-one billion, seven hundred thirty-one million, two hundred ninety-six thousand, sixteen".