56440001112638 has 32 divisors (see below), whose sum is σ = 99711232195680. Its totient is φ = 23621469125760.

The previous prime is 56440001112637. The next prime is 56440001112643. The reversal of 56440001112638 is 83621110004465.

It is a junction number, because it is equal to n+sod(n) for n = 56440001112595 and 56440001112604.

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, 248428853 + ... + 248655936.

It is an arithmetic number, because the mean of its divisors is an integer number (3115976006115).

Almost surely, 2^{56440001112638} is an apocalyptic number.

56440001112638 is a deficient number, since it is larger than the sum of its proper divisors (43271231083042).

56440001112638 is a wasteful number, since it uses less digits than its factorization.

56440001112638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497085212.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 56440001112638 in words is "fifty-six trillion, four hundred forty billion, one million, one hundred twelve thousand, six hundred thirty-eight".