71236273256 has 32 divisors (see below), whose sum is σ = 140082877440. Its totient is φ = 33896563008.

The previous prime is 71236273247. The next prime is 71236273259. The reversal of 71236273256 is 65237263217.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71236273259) 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, 946376 + ... + 1018871.

It is an arithmetic number, because the mean of its divisors is an integer number (4377589920).

Almost surely, 2^71236273256 is an apocalyptic number.

It is an amenable number.

71236273256 is a deficient number, since it is larger than the sum of its proper divisors (68846604184).

71236273256 is a wasteful number, since it uses less digits than its factorization.

71236273256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965473 (or 1965469 counting only the distinct ones).

The product of its digits is 635040, while the sum is 44.

The spelling of 71236273256 in words is "seventy-one billion, two hundred thirty-six million, two hundred seventy-three thousand, two hundred fifty-six".