71371644474 has 32 divisors (see below), whose sum is σ = 154110821760. Its totient is φ = 21905180352.

The previous prime is 71371644467. The next prime is 71371644511. The reversal of 71371644474 is 47444617317.

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, 1121454 + ... + 1183385.

It is an arithmetic number, because the mean of its divisors is an integer number (4815963180).

Almost surely, 2^71371644474 is an apocalyptic number.

71371644474 is an abundant number, since it is smaller than the sum of its proper divisors (82739177286).

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

71371644474 is a wasteful number, since it uses less digits than its factorization.

71371644474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305254.

The product of its digits is 1580544, while the sum is 48.

The spelling of 71371644474 in words is "seventy-one billion, three hundred seventy-one million, six hundred forty-four thousand, four hundred seventy-four".