71494861584 has 40 divisors (see below), whose sum is σ = 184710633120. Its totient is φ = 23829611008.

The previous prime is 71494861579. The next prime is 71494861601. The reversal of 71494861584 is 48516849417.

It is a super-2 number, since 2×71494861584² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580264 + ... + 692600.

It is an arithmetic number, because the mean of its divisors is an integer number (4617765828).

Almost surely, 2^71494861584 is an apocalyptic number.

It is an amenable number.

71494861584 is an abundant number, since it is smaller than the sum of its proper divisors (113215771536).

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

71494861584 is a wasteful number, since it uses less digits than its factorization.

71494861584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125607 (or 125601 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The spelling of 71494861584 in words is "seventy-one billion, four hundred ninety-four million, eight hundred sixty-one thousand, five hundred eighty-four".