31420178426 has 64 divisors (see below), whose sum is σ = 58488708096. Its totient is φ = 12327033600.

The previous prime is 31420178401. The next prime is 31420178443. The reversal of 31420178426 is 62487102413.

It is a super-2 number, since 2×31420178426² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31420178426.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14196896 + ... + 14199108.

It is an arithmetic number, because the mean of its divisors is an integer number (913886064).

Almost surely, 2^31420178426 is an apocalyptic number.

31420178426 is a deficient number, since it is larger than the sum of its proper divisors (27068529670).

31420178426 is a wasteful number, since it uses less digits than its factorization.

31420178426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 31420178426 in words is "thirty-one billion, four hundred twenty million, one hundred seventy-eight thousand, four hundred twenty-six".