72193866670 has 8 divisors (see below), whose sum is σ = 129948960024. Its totient is φ = 28877546664.

The previous prime is 72193866653. The next prime is 72193866739. The reversal of 72193866670 is 7666839127.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3609693324 + ... + 3609693343.

It is an arithmetic number, because the mean of its divisors is an integer number (16243620003).

Almost surely, 2^72193866670 is an apocalyptic number.

72193866670 is a deficient number, since it is larger than the sum of its proper divisors (57755093354).

72193866670 is a wasteful number, since it uses less digits than its factorization.

72193866670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219386674.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 72193866670 in words is "seventy-two billion, one hundred ninety-three million, eight hundred sixty-six thousand, six hundred seventy".