672216768 has 84 divisors (see below), whose sum is σ = 2010601008. Its totient is φ = 214325760.

The previous prime is 672216763. The next prime is 672216793. The reversal of 672216768 is 867612276.

It is not an unprimeable number, because it can be changed into a prime (672216763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12123 + ... + 38618.

Almost surely, 2^672216768 is an apocalyptic number.

It is an amenable number.

672216768 is an abundant number, since it is smaller than the sum of its proper divisors (1338384240).

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

672216768 is a wasteful number, since it uses less digits than its factorization.

672216768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50782 (or 50769 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 672216768 is about 25927.1434600883. The cubic root of 672216768 is about 875.9979983691.

The spelling of 672216768 in words is "six hundred seventy-two million, two hundred sixteen thousand, seven hundred sixty-eight".