71386208832 has 56 divisors (see below), whose sum is σ = 195388992000. Its totient is φ = 22974870016.

The previous prime is 71386208797. The next prime is 71386208851. The reversal of 71386208832 is 23880268317.

It is a super-2 number, since 2×71386208832² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 6404832 + ... + 6415967.

Almost surely, 2^71386208832 is an apocalyptic number.

It is an amenable number.

71386208832 is an abundant number, since it is smaller than the sum of its proper divisors (124002783168).

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

71386208832 is a wasteful number, since it uses less digits than its factorization.

71386208832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12820843 (or 12820833 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 71386208832 in words is "seventy-one billion, three hundred eighty-six million, two hundred eight thousand, eight hundred thirty-two".