72818734768 has 20 divisors (see below), whose sum is σ = 151939091248. Its totient is φ = 33608646720.

The previous prime is 72818734739. The next prime is 72818734771. The reversal of 72818734768 is 86743781827.

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, 175044828 + ... + 175045243.

Almost surely, 2^72818734768 is an apocalyptic number.

It is an amenable number.

72818734768 is an abundant number, since it is smaller than the sum of its proper divisors (79120356480).

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

72818734768 is a wasteful number, since it uses less digits than its factorization.

72818734768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350090092 (or 350090086 counting only the distinct ones).

The product of its digits is 25288704, while the sum is 61.

The spelling of 72818734768 in words is "seventy-two billion, eight hundred eighteen million, seven hundred thirty-four thousand, seven hundred sixty-eight".