71513223712 has 48 divisors (see below), whose sum is σ = 161052518592. Its totient is φ = 30620378880.

The previous prime is 71513223707. The next prime is 71513223787. The reversal of 71513223712 is 21732231517.

It is a super-2 number, since 2×71513223712² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98787 + ... + 390877.

It is an arithmetic number, because the mean of its divisors is an integer number (3355260804).

Almost surely, 2^71513223712 is an apocalyptic number.

It is an amenable number.

71513223712 is an abundant number, since it is smaller than the sum of its proper divisors (89539294880).

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

71513223712 is a wasteful number, since it uses less digits than its factorization.

71513223712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293201 (or 293193 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The spelling of 71513223712 in words is "seventy-one billion, five hundred thirteen million, two hundred twenty-three thousand, seven hundred twelve".