42244664624421 has 64 divisors (see below), whose sum is σ = 66176603652096. Its totient is φ = 23471984390400.

The previous prime is 42244664624353. The next prime is 42244664624429. The reversal of 42244664624421 is 12442646644224.

42244664624421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42244664624421 - 2⁷ = 42244664624293 is a prime.

It is a super-2 number, since 2×42244664624421² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244664624429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128606731 + ... + 128934791.

It is an arithmetic number, because the mean of its divisors is an integer number (1034009432064).

Almost surely, 2^{42244664624421} is an apocalyptic number.

It is an amenable number.

42244664624421 is a deficient number, since it is larger than the sum of its proper divisors (23931939027675).

42244664624421 is a wasteful number, since it uses less digits than its factorization.

42244664624421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329162.

The product of its digits is 14155776, while the sum is 51.

The spelling of 42244664624421 in words is "forty-two trillion, two hundred forty-four billion, six hundred sixty-four million, six hundred twenty-four thousand, four hundred twenty-one".