71299175680 has 72 divisors (see below), whose sum is σ = 178209263232. Its totient is φ = 27279673344.

The previous prime is 71299175671. The next prime is 71299175687. The reversal of 71299175680 is 8657199217.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71299175687) 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, 1181484 + ... + 1240363.

It is an arithmetic number, because the mean of its divisors is an integer number (2475128656).

Almost surely, 2^71299175680 is an apocalyptic number.

It is an amenable number.

71299175680 is an abundant number, since it is smaller than the sum of its proper divisors (106910087552).

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

71299175680 is a wasteful number, since it uses less digits than its factorization.

71299175680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421891 (or 2421877 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 71299175680 in words is "seventy-one billion, two hundred ninety-nine million, one hundred seventy-five thousand, six hundred eighty".