71551830315 has 96 divisors (see below), whose sum is σ = 141139252224. Its totient is φ = 30756633600.

The previous prime is 71551830283. The next prime is 71551830319. The reversal of 71551830315 is 51303815517.

It is not a de Polignac number, because 71551830315 - 2⁵ = 71551830283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71551830319) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18578140 + ... + 18581990.

It is an arithmetic number, because the mean of its divisors is an integer number (1470200544).

Almost surely, 2^71551830315 is an apocalyptic number.

71551830315 is a deficient number, since it is larger than the sum of its proper divisors (69587421909).

71551830315 is a wasteful number, since it uses less digits than its factorization.

71551830315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377 (or 5370 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 71551830315 in words is "seventy-one billion, five hundred fifty-one million, eight hundred thirty thousand, three hundred fifteen".