31480396685 has 8 divisors (see below), whose sum is σ = 37777592160. Its totient is φ = 25183573264.

The previous prime is 31480396667. The next prime is 31480396691. The reversal of 31480396685 is 58669308413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31480396685 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151646 + ... + 293184.

It is an arithmetic number, because the mean of its divisors is an integer number (4722199020).

Almost surely, 2^31480396685 is an apocalyptic number.

It is an amenable number.

31480396685 is a deficient number, since it is larger than the sum of its proper divisors (6297195475).

31480396685 is a wasteful number, since it uses less digits than its factorization.

31480396685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186027.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 31480396685 in words is "thirty-one billion, four hundred eighty million, three hundred ninety-six thousand, six hundred eighty-five".