31797367480 has 16 divisors (see below), whose sum is σ = 71544076920. Its totient is φ = 12718946976.

The previous prime is 31797367453. The next prime is 31797367493. The reversal of 31797367480 is 8476379713.

It is a super-2 number, since 2×31797367480² (a number of 22 digits) contains 22 as substring.

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, 397467054 + ... + 397467133.

Almost surely, 2^31797367480 is an apocalyptic number.

It is an amenable number.

31797367480 is an abundant number, since it is smaller than the sum of its proper divisors (39746709440).

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

31797367480 is a wasteful number, since it uses less digits than its factorization.

31797367480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794934198 (or 794934194 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 31797367480 in words is "thirty-one billion, seven hundred ninety-seven million, three hundred sixty-seven thousand, four hundred eighty".