71318077205 has 16 divisors (see below), whose sum is σ = 87587495424. Its totient is φ = 55717730880.

The previous prime is 71318077199. The next prime is 71318077213. The reversal of 71318077205 is 50277081317.

It is not a de Polignac number, because 71318077205 - 2³⁴ = 54138208021 is a prime.

It is a super-2 number, since 2×71318077205² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331900 + ... + 1384410.

It is an arithmetic number, because the mean of its divisors is an integer number (5474218464).

Almost surely, 2^71318077205 is an apocalyptic number.

It is an amenable number.

71318077205 is a deficient number, since it is larger than the sum of its proper divisors (16269418219).

71318077205 is a wasteful number, since it uses less digits than its factorization.

71318077205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58876.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 71318077205 in words is "seventy-one billion, three hundred eighteen million, seventy-seven thousand, two hundred five".