31376888272 has 10 divisors (see below), whose sum is σ = 60792721058. Its totient is φ = 15688444128.

The previous prime is 31376888269. The next prime is 31376888299. The reversal of 31376888272 is 27288867313.

It can be written as a sum of positive squares in only one way, i.e., 29844635536 + 1532252736 = 172756^2 + 39144^2 .

It is a super-2 number, since 2×31376888272² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 980527743 + ... + 980527774.

Almost surely, 2^31376888272 is an apocalyptic number.

It is an amenable number.

31376888272 is a deficient number, since it is larger than the sum of its proper divisors (29415832786).

31376888272 is a wasteful number, since it uses less digits than its factorization.

31376888272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961055525 (or 1961055519 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The spelling of 31376888272 in words is "thirty-one billion, three hundred seventy-six million, eight hundred eighty-eight thousand, two hundred seventy-two".