56440001112639 has 16 divisors (see below), whose sum is σ = 75728985787392. Its totient is φ = 37389458852928.

The previous prime is 56440001112637. The next prime is 56440001112643. The reversal of 56440001112639 is 93621110004465.

It is a happy number.

It is not a de Polignac number, because 56440001112639 - 2¹ = 56440001112637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56440001112639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56440001112637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76749894 + ... + 77481779.

It is an arithmetic number, because the mean of its divisors is an integer number (4733061611712).

Almost surely, 2^{56440001112639} is an apocalyptic number.

56440001112639 is a deficient number, since it is larger than the sum of its proper divisors (19288984674753).

56440001112639 is a wasteful number, since it uses less digits than its factorization.

56440001112639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154232446.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 56440001112639 in words is "fifty-six trillion, four hundred forty billion, one million, one hundred twelve thousand, six hundred thirty-nine".