71593829940 has 48 divisors (see below), whose sum is σ = 204245048448. Its totient is φ = 18731466624.

The previous prime is 71593829939. The next prime is 71593829969. The reversal of 71593829940 is 4992839517.

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, 11253712 + ... + 11260071.

It is an arithmetic number, because the mean of its divisors is an integer number (4255105176).

Almost surely, 2^71593829940 is an apocalyptic number.

It is an amenable number.

71593829940 is an abundant number, since it is smaller than the sum of its proper divisors (132651218508).

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

71593829940 is a wasteful number, since it uses less digits than its factorization.

71593829940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22513848 (or 22513846 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 71593829940 in words is "seventy-one billion, five hundred ninety-three million, eight hundred twenty-nine thousand, nine hundred forty".