31434905896 has 32 divisors (see below), whose sum is σ = 60068696040. Its totient is φ = 15416747008.

The previous prime is 31434905893. The next prime is 31434905899. The reversal of 31434905896 is 69850943413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31434905893) and next prime (31434905899).

It can be written as a sum of positive squares in 4 ways, for example, as 26825853796 + 4609052100 = 163786^2 + 67890^2 .

It is not an unprimeable number, because it can be changed into a prime (31434905893) 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, 2085780 + ... + 2100796.

Almost surely, 2^31434905896 is an apocalyptic number.

It is an amenable number.

31434905896 is a deficient number, since it is larger than the sum of its proper divisors (28633790144).

31434905896 is a wasteful number, since it uses less digits than its factorization.

31434905896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20013 (or 20009 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 31434905896 in words is "thirty-one billion, four hundred thirty-four million, nine hundred five thousand, eight hundred ninety-six".