56720279838 has 16 divisors (see below), whose sum is σ = 113591621376. Its totient is φ = 18881583000.

The previous prime is 56720279821. The next prime is 56720279839. The reversal of 56720279838 is 83897202765.

56720279838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56720279839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6289356 + ... + 6298367.

It is an arithmetic number, because the mean of its divisors is an integer number (7099476336).

Almost surely, 2^56720279838 is an apocalyptic number.

56720279838 is an abundant number, since it is smaller than the sum of its proper divisors (56871341538).

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

56720279838 is a wasteful number, since it uses less digits than its factorization.

56720279838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12588479.

The product of its (nonzero) digits is 10160640, while the sum is 57.

It can be divided in two parts, 5672027 and 9838, that added together give a palindrome (5681865).

The spelling of 56720279838 in words is "fifty-six billion, seven hundred twenty million, two hundred seventy-nine thousand, eight hundred thirty-eight".