612317184856 has 32 divisors (see below), whose sum is σ = 1236476147760. Its totient is φ = 282592743552.

The previous prime is 612317184847. The next prime is 612317184863. The reversal of 612317184856 is 658481713216.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916431 + ... + 2212993.

Almost surely, 2^612317184856 is an apocalyptic number.

It is an amenable number.

612317184856 is an abundant number, since it is smaller than the sum of its proper divisors (624158962904).

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

612317184856 is a wasteful number, since it uses less digits than its factorization.

612317184856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316435 (or 316431 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The spelling of 612317184856 in words is "six hundred twelve billion, three hundred seventeen million, one hundred eighty-four thousand, eight hundred fifty-six".