42369638986 has 16 divisors (see below), whose sum is σ = 67522913640. Its totient is φ = 19901488320.

The previous prime is 42369638959. The next prime is 42369639001. The reversal of 42369638986 is 68983696324.

It can be written as a sum of positive squares in 4 ways, for example, as 41950822761 + 418816225 = 204819^2 + 20465^2 .

It is a super-2 number, since 2×42369638986² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9869625 + ... + 9873916.

Almost surely, 2^42369638986 is an apocalyptic number.

42369638986 is a deficient number, since it is larger than the sum of its proper divisors (25153274654).

42369638986 is a wasteful number, since it uses less digits than its factorization.

42369638986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19743609.

The product of its digits is 80621568, while the sum is 64.

The spelling of 42369638986 in words is "forty-two billion, three hundred sixty-nine million, six hundred thirty-eight thousand, nine hundred eighty-six".