612656863 has 16 divisors (see below), whose sum is σ = 798396480. Its totient is φ = 456224256.

The previous prime is 612656851. The next prime is 612656873. The reversal of 612656863 is 368656216.

612656863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 612656863 - 2⁵ = 612656831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612656873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196468 + ... + 199561.

It is an arithmetic number, because the mean of its divisors is an integer number (49899780).

Almost surely, 2^612656863 is an apocalyptic number.

612656863 is a deficient number, since it is larger than the sum of its proper divisors (185739617).

612656863 is a wasteful number, since it uses less digits than its factorization.

612656863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396066.

The product of its digits is 311040, while the sum is 43.

The square root of 612656863 is about 24751.9062498225. The cubic root of 612656863 is about 849.3221183513.

The spelling of 612656863 in words is "six hundred twelve million, six hundred fifty-six thousand, eight hundred sixty-three".