97137971272 has 16 divisors (see below), whose sum is σ = 182491530300. Its totient is φ = 48473563200.

The previous prime is 97137971263. The next prime is 97137971297. The reversal of 97137971272 is 27217973179.

It can be written as a sum of positive squares in 2 ways, for example, as 75024496836 + 22113474436 = 273906^2 + 148706^2 .

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, 11923479 + ... + 11931622.

Almost surely, 2^97137971272 is an apocalyptic number.

It is an amenable number.

97137971272 is a deficient number, since it is larger than the sum of its proper divisors (85353559028).

97137971272 is a wasteful number, since it uses less digits than its factorization.

97137971272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23855616 (or 23855612 counting only the distinct ones).

The product of its digits is 2333772, while the sum is 55.

The spelling of 97137971272 in words is "ninety-seven billion, one hundred thirty-seven million, nine hundred seventy-one thousand, two hundred seventy-two".