56816727261 has 16 divisors (see below), whose sum is σ = 86587087488. Its totient is φ = 32463244800.

The previous prime is 56816727229. The next prime is 56816727307. The reversal of 56816727261 is 16272761865.

It is not a de Polignac number, because 56816727261 - 2⁵ = 56816727229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816727061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64981 + ... + 343301.

It is an arithmetic number, because the mean of its divisors is an integer number (5411692968).

Almost surely, 2^56816727261 is an apocalyptic number.

It is an amenable number.

56816727261 is a deficient number, since it is larger than the sum of its proper divisors (29770360227).

56816727261 is a wasteful number, since it uses less digits than its factorization.

56816727261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288052.

The product of its digits is 1693440, while the sum is 51.

The spelling of 56816727261 in words is "fifty-six billion, eight hundred sixteen million, seven hundred twenty-seven thousand, two hundred sixty-one".