71653860908 has 36 divisors (see below), whose sum is σ = 150572181312. Its totient is φ = 29718188640.

The previous prime is 71653860899. The next prime is 71653860913. The reversal of 71653860908 is 80906835617.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71653860908.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5890391 + ... + 5902542.

It is an arithmetic number, because the mean of its divisors is an integer number (4182560592).

Almost surely, 2^71653860908 is an apocalyptic number.

It is an amenable number.

71653860908 is an abundant number, since it is smaller than the sum of its proper divisors (78918320404).

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

71653860908 is a wasteful number, since it uses less digits than its factorization.

71653860908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792982 (or 11792973 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 71653860908 in words is "seventy-one billion, six hundred fifty-three million, eight hundred sixty thousand, nine hundred eight".