71297118315 has 24 divisors (see below), whose sum is σ = 125322264288. Its totient is φ = 37489562880.

The previous prime is 71297118301. The next prime is 71297118331. The reversal of 71297118315 is 51381179217.

It is not a de Polignac number, because 71297118315 - 2¹³ = 71297110123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 11154414 + ... + 11160803.

It is an arithmetic number, because the mean of its divisors is an integer number (5221761012).

Almost surely, 2^71297118315 is an apocalyptic number.

71297118315 is a deficient number, since it is larger than the sum of its proper divisors (54025145973).

71297118315 is a wasteful number, since it uses less digits than its factorization.

71297118315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22315299 (or 22315296 counting only the distinct ones).

The product of its digits is 105840, while the sum is 45.

The spelling of 71297118315 in words is "seventy-one billion, two hundred ninety-seven million, one hundred eighteen thousand, three hundred fifteen".