2561712715 has 32 divisors (see below), whose sum is σ = 3291105600. Its totient is φ = 1908541440.

The previous prime is 2561712701. The next prime is 2561712743. The reversal of 2561712715 is 5172171652.

It is not a de Polignac number, because 2561712715 - 2⁹ = 2561712203 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3612781 + ... + 3613489.

It is an arithmetic number, because the mean of its divisors is an integer number (102847050).

Almost surely, 2^2561712715 is an apocalyptic number.

2561712715 is a deficient number, since it is larger than the sum of its proper divisors (729392885).

2561712715 is a wasteful number, since it uses less digits than its factorization.

2561712715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327.

The product of its digits is 29400, while the sum is 37.

The square root of 2561712715 is about 50613.3649839645. The cubic root of 2561712715 is about 1368.2857624004.

The spelling of 2561712715 in words is "two billion, five hundred sixty-one million, seven hundred twelve thousand, seven hundred fifteen".