42556364403 has 32 divisors (see below), whose sum is σ = 65722460160. Its totient is φ = 23990428800.

The previous prime is 42556364377. The next prime is 42556364413. The reversal of 42556364403 is 30446365524.

It is a happy number.

It is not a de Polignac number, because 42556364403 - 2⁵ = 42556364371 is a prime.

It is a super-2 number, since 2×42556364403² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42556364413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2148501 + ... + 2168217.

It is an arithmetic number, because the mean of its divisors is an integer number (2053826880).

Almost surely, 2^42556364403 is an apocalyptic number.

42556364403 is a deficient number, since it is larger than the sum of its proper divisors (23166095757).

42556364403 is a wasteful number, since it uses less digits than its factorization.

42556364403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21107.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 42556364403 in words is "forty-two billion, five hundred fifty-six million, three hundred sixty-four thousand, four hundred three".