31400080172 has 24 divisors (see below), whose sum is σ = 56765960832. Its totient is φ = 15182006400.

The previous prime is 31400080169. The next prime is 31400080213. The reversal of 31400080172 is 27108000413.

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, 67958 + ... + 259650.

It is an arithmetic number, because the mean of its divisors is an integer number (2365248368).

Almost surely, 2^31400080172 is an apocalyptic number.

It is an amenable number.

31400080172 is a deficient number, since it is larger than the sum of its proper divisors (25365880660).

31400080172 is a wasteful number, since it uses less digits than its factorization.

31400080172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193049 (or 193047 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 31400080172 its reverse (27108000413), we get a palindrome (58508080585).

The spelling of 31400080172 in words is "thirty-one billion, four hundred million, eighty thousand, one hundred seventy-two".