31880348272 has 20 divisors (see below), whose sum is σ = 61771005976. Its totient is φ = 15939443520.

The previous prime is 31880348249. The next prime is 31880348293. The reversal of 31880348272 is 27284308813.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548947 + ... + 604237.

Almost surely, 2^31880348272 is an apocalyptic number.

It is an amenable number.

31880348272 is a deficient number, since it is larger than the sum of its proper divisors (29890657704).

31880348272 is a wasteful number, since it uses less digits than its factorization.

31880348272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91336 (or 91330 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 31880348272 in words is "thirty-one billion, eight hundred eighty million, three hundred forty-eight thousand, two hundred seventy-two".