71839368916 has 24 divisors (see below), whose sum is σ = 143719511936. Its totient is φ = 30779563680.

The previous prime is 71839368863. The next prime is 71839368941. The reversal of 71839368916 is 61986393817.

It is a congruent number.

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, 263136 + ... + 461431.

Almost surely, 2^71839368916 is an apocalyptic number.

It is an amenable number.

71839368916 is an abundant number, since it is smaller than the sum of its proper divisors (71880143020).

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

71839368916 is a wasteful number, since it uses less digits than its factorization.

71839368916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728119 (or 728117 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The spelling of 71839368916 in words is "seventy-one billion, eight hundred thirty-nine million, three hundred sixty-eight thousand, nine hundred sixteen".