31497976426 has 32 divisors (see below), whose sum is σ = 55041068160. Its totient is φ = 13238237376.

The previous prime is 31497976403. The next prime is 31497976439. The reversal of 31497976426 is 62467979413.

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, 1799545 + ... + 1816963.

It is an arithmetic number, because the mean of its divisors is an integer number (1720033380).

Almost surely, 2^31497976426 is an apocalyptic number.

31497976426 is a deficient number, since it is larger than the sum of its proper divisors (23543091734).

31497976426 is a wasteful number, since it uses less digits than its factorization.

31497976426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19918.

The product of its digits is 13716864, while the sum is 58.

The spelling of 31497976426 in words is "thirty-one billion, four hundred ninety-seven million, nine hundred seventy-six thousand, four hundred twenty-six".