42534390922 has 16 divisors (see below), whose sum is σ = 64089160200. Its totient is φ = 21171377152.

The previous prime is 42534390919. The next prime is 42534390923. The reversal of 42534390922 is 22909343524.

It can be written as a sum of positive squares in 4 ways, for example, as 26991532681 + 15542858241 = 164291^2 + 124671^2 .

It is a super-2 number, since 2×42534390922² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42534390923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3558468 + ... + 3570400.

Almost surely, 2^42534390922 is an apocalyptic number.

42534390922 is a deficient number, since it is larger than the sum of its proper divisors (21554769278).

42534390922 is a wasteful number, since it uses less digits than its factorization.

42534390922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19817.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 42534390922 in words is "forty-two billion, five hundred thirty-four million, three hundred ninety thousand, nine hundred twenty-two".