56837221847 has 48 divisors (see below), whose sum is σ = 72059181120. Its totient is φ = 44512699392.

The previous prime is 56837221843. The next prime is 56837221849. The reversal of 56837221847 is 74812273865.

It is not a de Polignac number, because 56837221847 - 2² = 56837221843 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56837221843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15686078 + ... + 15689700.

It is an arithmetic number, because the mean of its divisors is an integer number (1501232940).

Almost surely, 2^56837221847 is an apocalyptic number.

56837221847 is a deficient number, since it is larger than the sum of its proper divisors (15221959273).

56837221847 is a wasteful number, since it uses less digits than its factorization.

56837221847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200 (or 4193 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 56837221847 in words is "fifty-six billion, eight hundred thirty-seven million, two hundred twenty-one thousand, eight hundred forty-seven".