31424826042 has 32 divisors (see below), whose sum is σ = 69843044160. Its totient is φ = 10473427440.

The previous prime is 31424826031. The next prime is 31424826061. The reversal of 31424826042 is 24062842413.

31424826042 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 48 + 2 + 604 + 2 = 666.

It is a super-2 number, since 2×31424826042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31424825988 and 31424826006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372292 + ... + 448832.

It is an arithmetic number, because the mean of its divisors is an integer number (2182595130).

Almost surely, 2^31424826042 is an apocalyptic number.

31424826042 is an abundant number, since it is smaller than the sum of its proper divisors (38418218118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31424826042 is a wasteful number, since it uses less digits than its factorization.

31424826042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84155 (or 84149 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 31424826042 in words is "thirty-one billion, four hundred twenty-four million, eight hundred twenty-six thousand, forty-two".