71425064564 has 24 divisors (see below), whose sum is σ = 142856289408. Its totient is φ = 30609421920.

The previous prime is 71425064561. The next prime is 71425064591. The reversal of 71425064564 is 46546052417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71425064561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891854 + ... + 968634.

It is an arithmetic number, because the mean of its divisors is an integer number (5952345392).

Almost surely, 2^71425064564 is an apocalyptic number.

It is an amenable number.

71425064564 is an abundant number, since it is smaller than the sum of its proper divisors (71431224844).

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

71425064564 is a wasteful number, since it uses less digits than its factorization.

71425064564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110015 (or 110013 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 71425064564 in words is "seventy-one billion, four hundred twenty-five million, sixty-four thousand, five hundred sixty-four".