71789752572 has 12 divisors (see below), whose sum is σ = 167509422696. Its totient is φ = 23929917520.

The previous prime is 71789752543. The next prime is 71789752583. The reversal of 71789752572 is 27525798717.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2991239679 + ... + 2991239702.

It is an arithmetic number, because the mean of its divisors is an integer number (13959118558).

Almost surely, 2^71789752572 is an apocalyptic number.

It is an amenable number.

71789752572 is an abundant number, since it is smaller than the sum of its proper divisors (95719670124).

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

71789752572 is a wasteful number, since it uses less digits than its factorization.

71789752572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982479388 (or 5982479386 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 60.

The spelling of 71789752572 in words is "seventy-one billion, seven hundred eighty-nine million, seven hundred fifty-two thousand, five hundred seventy-two".