56388013901790 has 32 divisors (see below), whose sum is σ = 135347544825120. Its totient is φ = 15034991322624.

The previous prime is 56388013901771. The next prime is 56388013901861. The reversal of 56388013901790 is 9710931088365.

It is a super-2 number, since 2×56388013901790² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113020975 + ... + 113518794.

It is an arithmetic number, because the mean of its divisors is an integer number (4229610775785).

Almost surely, 2^{56388013901790} is an apocalyptic number.

56388013901790 is an abundant number, since it is smaller than the sum of its proper divisors (78959530923330).

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

56388013901790 is a wasteful number, since it uses less digits than its factorization.

56388013901790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226548076.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 56388013901790 in words is "fifty-six trillion, three hundred eighty-eight billion, thirteen million, nine hundred one thousand, seven hundred ninety".