56340873381 has 24 divisors (see below), whose sum is σ = 81668484576. Its totient is φ = 34533096000.

The previous prime is 56340873377. The next prime is 56340873397. The reversal of 56340873381 is 18337804365.

It is not a de Polignac number, because 56340873381 - 2² = 56340873377 is a prime.

It is a super-2 number, since 2×56340873381² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56340873381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56340873361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94110 + ... + 348623.

It is an arithmetic number, because the mean of its divisors is an integer number (3402853524).

Almost surely, 2^56340873381 is an apocalyptic number.

It is an amenable number.

56340873381 is a deficient number, since it is larger than the sum of its proper divisors (25327611195).

56340873381 is a wasteful number, since it uses less digits than its factorization.

56340873381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443013 (or 443000 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 56340873381 in words is "fifty-six billion, three hundred forty million, eight hundred seventy-three thousand, three hundred eighty-one".