31471698396 has 12 divisors (see below), whose sum is σ = 73433962952. Its totient is φ = 10490566128.

The previous prime is 31471698343. The next prime is 31471698407. The reversal of 31471698396 is 69389617413.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311320755 + ... + 1311320778.

Almost surely, 2^31471698396 is an apocalyptic number.

It is an amenable number.

31471698396 is an abundant number, since it is smaller than the sum of its proper divisors (41962264556).

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

31471698396 is a wasteful number, since it uses less digits than its factorization.

31471698396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622641540 (or 2622641538 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 57.

The spelling of 31471698396 in words is "thirty-one billion, four hundred seventy-one million, six hundred ninety-eight thousand, three hundred ninety-six".