51440667477883 has 16 divisors (see below), whose sum is σ = 53527723493760. Its totient is φ = 49375296230400.

The previous prime is 51440667477863. The next prime is 51440667477893. The reversal of 51440667477883 is 38877476604415.

It is a cyclic number.

It is not a de Polignac number, because 51440667477883 - 2⁴⁵ = 16256295389051 is a prime.

It is a super-2 number, since 2×51440667477883² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51440667477803) 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, 3569758 + ... + 10752883.

It is an arithmetic number, because the mean of its divisors is an integer number (3345482718360).

Almost surely, 2^{51440667477883} is an apocalyptic number.

51440667477883 is a deficient number, since it is larger than the sum of its proper divisors (2087056015877).

51440667477883 is a wasteful number, since it uses less digits than its factorization.

51440667477883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14323398.

The product of its (nonzero) digits is 758661120, while the sum is 70.

The spelling of 51440667477883 in words is "fifty-one trillion, four hundred forty billion, six hundred sixty-seven million, four hundred seventy-seven thousand, eight hundred eighty-three".