56783640518 has 16 divisors (see below), whose sum is σ = 93437789760. Its totient is φ = 25666549800.

The previous prime is 56783640493. The next prime is 56783640539. The reversal of 56783640518 is 81504638765.

56783640518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56783640518.

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, 7205768 + ... + 7213643.

It is an arithmetic number, because the mean of its divisors is an integer number (5839861860).

Almost surely, 2^56783640518 is an apocalyptic number.

56783640518 is a deficient number, since it is larger than the sum of its proper divisors (36654149242).

56783640518 is a wasteful number, since it uses less digits than its factorization.

56783640518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14419603.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 56783640518 in words is "fifty-six billion, seven hundred eighty-three million, six hundred forty thousand, five hundred eighteen".