56396649318 has 16 divisors (see below), whose sum is σ = 112796055360. Its totient is φ = 18798423656.

The previous prime is 56396649293. The next prime is 56396649341. The reversal of 56396649318 is 81394669365.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231373 + ... + 407831.

It is an arithmetic number, because the mean of its divisors is an integer number (7049753460).

Almost surely, 2^56396649318 is an apocalyptic number.

56396649318 is an abundant number, since it is smaller than the sum of its proper divisors (56399406042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56396649318 is a wasteful number, since it uses less digits than its factorization.

56396649318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229731.

The product of its digits is 25194240, while the sum is 60.

The spelling of 56396649318 in words is "fifty-six billion, three hundred ninety-six million, six hundred forty-nine thousand, three hundred eighteen".