72691366936 has 16 divisors (see below), whose sum is σ = 137369514240. Its totient is φ = 36059496480.

The previous prime is 72691366921. The next prime is 72691366967. The reversal of 72691366936 is 63966319627.

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, 35772295 + ... + 35774326.

It is an arithmetic number, because the mean of its divisors is an integer number (8585594640).

Almost surely, 2^72691366936 is an apocalyptic number.

It is an amenable number.

72691366936 is a deficient number, since it is larger than the sum of its proper divisors (64678147304).

72691366936 is a wasteful number, since it uses less digits than its factorization.

72691366936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71546754 (or 71546750 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 58.

The spelling of 72691366936 in words is "seventy-two billion, six hundred ninety-one million, three hundred sixty-six thousand, nine hundred thirty-six".