71317197432 has 48 divisors (see below), whose sum is σ = 208008495240. Its totient is φ = 21943752768.

The previous prime is 71317197431. The next prime is 71317197439. The reversal of 71317197432 is 23479171317.

71317197432 is a `hidden beast` number, since 7 + 13 + 17 + 197 + 432 = 666.

It is a super-2 number, since 2×71317197432² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71317197431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38095858 + ... + 38097729.

Almost surely, 2^71317197432 is an apocalyptic number.

71317197432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71317197432 is an abundant number, since it is smaller than the sum of its proper divisors (136691297808).

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

71317197432 is a wasteful number, since it uses less digits than its factorization.

71317197432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76193612 (or 76193605 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The spelling of 71317197432 in words is "seventy-one billion, three hundred seventeen million, one hundred ninety-seven thousand, four hundred thirty-two".