612868216 has 16 divisors (see below), whose sum is σ = 1149422040. Its totient is φ = 306355680.

The previous prime is 612868211. The next prime is 612868247.

612868216 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612868211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35986 + ... + 50206.

Almost surely, 2^612868216 is an apocalyptic number.

It is an amenable number.

612868216 is a deficient number, since it is larger than the sum of its proper divisors (536553824).

612868216 is a wasteful number, since it uses less digits than its factorization.

612868216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19614 (or 19610 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 612868216 is about 24756.1753104150. The cubic root of 612868216 is about 849.4197728735.

The spelling of 612868216 in words is "six hundred twelve million, eight hundred sixty-eight thousand, two hundred sixteen".