56840136418 has 8 divisors (see below), whose sum is σ = 91818681948. Its totient is φ = 26233909104.

The previous prime is 56840136403. The next prime is 56840136427. The reversal of 56840136418 is 81463104865.

It can be written as a sum of positive squares in 2 ways, for example, as 41516915049 + 15323221369 = 203757^2 + 123787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56840136418² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093079521 + ... + 1093079572.

Almost surely, 2^56840136418 is an apocalyptic number.

56840136418 is a deficient number, since it is larger than the sum of its proper divisors (34978545530).

56840136418 is a wasteful number, since it uses less digits than its factorization.

56840136418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186159108.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 56840136418 in words is "fifty-six billion, eight hundred forty million, one hundred thirty-six thousand, four hundred eighteen".