71232723256 has 16 divisors (see below), whose sum is σ = 133826893200. Its totient is φ = 35545551744.

The previous prime is 71232723193. The next prime is 71232723277. The reversal of 71232723256 is 65232723217.

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, 8846961 + ... + 8855008.

It is an arithmetic number, because the mean of its divisors is an integer number (8364180825).

Almost surely, 2^71232723256 is an apocalyptic number.

It is an amenable number.

71232723256 is a deficient number, since it is larger than the sum of its proper divisors (62594169944).

71232723256 is a wasteful number, since it uses less digits than its factorization.

71232723256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17702478 (or 17702474 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The spelling of 71232723256 in words is "seventy-one billion, two hundred thirty-two million, seven hundred twenty-three thousand, two hundred fifty-six".