56464620518 has 4 divisors (see below), whose sum is σ = 84696930780. Its totient is φ = 28232310258.

The previous prime is 56464620517. The next prime is 56464620521. The reversal of 56464620518 is 81502646465.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56464620517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14116155128 + ... + 14116155131.

It is an arithmetic number, because the mean of its divisors is an integer number (21174232695).

Almost surely, 2^56464620518 is an apocalyptic number.

56464620518 is a deficient number, since it is larger than the sum of its proper divisors (28232310262).

56464620518 is a wasteful number, since it uses less digits than its factorization.

56464620518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28232310261.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 56464620518 in words is "fifty-six billion, four hundred sixty-four million, six hundred twenty thousand, five hundred eighteen".