71807081712 has 20 divisors (see below), whose sum is σ = 185501627880. Its totient is φ = 23935693888.

The previous prime is 71807081683. The next prime is 71807081737. The reversal of 71807081712 is 21718070817.

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, 747990387 + ... + 747990482.

It is an arithmetic number, because the mean of its divisors is an integer number (9275081394).

Almost surely, 2^71807081712 is an apocalyptic number.

It is an amenable number.

71807081712 is an abundant number, since it is smaller than the sum of its proper divisors (113694546168).

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

71807081712 is a wasteful number, since it uses less digits than its factorization.

71807081712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495980880 (or 1495980874 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 42.

The spelling of 71807081712 in words is "seventy-one billion, eight hundred seven million, eighty-one thousand, seven hundred twelve".