71789553156 has 96 divisors (see below), whose sum is σ = 174676981248. Its totient is φ = 22929984000.

The previous prime is 71789553149. The next prime is 71789553179. The reversal of 71789553156 is 65135598717.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71789553096 and 71789553105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8673436 + ... + 8681708.

It is an arithmetic number, because the mean of its divisors is an integer number (1819551888).

Almost surely, 2^71789553156 is an apocalyptic number.

It is an amenable number.

71789553156 is an abundant number, since it is smaller than the sum of its proper divisors (102887428092).

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

71789553156 is a wasteful number, since it uses less digits than its factorization.

71789553156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641 (or 8639 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 57.

The spelling of 71789553156 in words is "seventy-one billion, seven hundred eighty-nine million, five hundred fifty-three thousand, one hundred fifty-six".