56142918545 has 32 divisors (see below), whose sum is σ = 78099379200. Its totient is φ = 37947926016.

The previous prime is 56142918509. The next prime is 56142918553. The reversal of 56142918545 is 54581924165.

It is not a de Polignac number, because 56142918545 - 2²² = 56138724241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56142918493 and 56142918502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1689551 + ... + 1722459.

It is an arithmetic number, because the mean of its divisors is an integer number (2440605600).

Almost surely, 2^56142918545 is an apocalyptic number.

It is an amenable number.

56142918545 is a deficient number, since it is larger than the sum of its proper divisors (21956460655).

56142918545 is a wasteful number, since it uses less digits than its factorization.

56142918545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33617.

The product of its digits is 1728000, while the sum is 50.

The spelling of 56142918545 in words is "fifty-six billion, one hundred forty-two million, nine hundred eighteen thousand, five hundred forty-five".