31193545416 has 48 divisors (see below), whose sum is σ = 85717808400. Its totient is φ = 9452588640.

The previous prime is 31193545387. The next prime is 31193545447. The reversal of 31193545416 is 61454539113.

It is a super-2 number, since 2×31193545416² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5367886 + ... + 5373693.

It is an arithmetic number, because the mean of its divisors is an integer number (1785787675).

Almost surely, 2^31193545416 is an apocalyptic number.

It is an amenable number.

31193545416 is an abundant number, since it is smaller than the sum of its proper divisors (54524262984).

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

31193545416 is a wasteful number, since it uses less digits than its factorization.

31193545416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741610 (or 10741595 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The spelling of 31193545416 in words is "thirty-one billion, one hundred ninety-three million, five hundred forty-five thousand, four hundred sixteen".