612642812 has 36 divisors (see below), whose sum is σ = 1135576848. Its totient is φ = 288657600.

The previous prime is 612642773. The next prime is 612642829. The reversal of 612642812 is 218246216.

612642812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463112 + ... + 464432.

Almost surely, 2^612642812 is an apocalyptic number.

It is an amenable number.

612642812 is a deficient number, since it is larger than the sum of its proper divisors (522934036).

612642812 is a wasteful number, since it uses less digits than its factorization.

612642812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1417 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 612642812 is about 24751.6224114703. The cubic root of 612642812 is about 849.3156253659.

The spelling of 612642812 in words is "six hundred twelve million, six hundred forty-two thousand, eight hundred twelve".