612972388224 has 144 divisors (see below), whose sum is σ = 2051874438120. Its totient is φ = 175134951936.

The previous prime is 612972388183. The next prime is 612972388313. The reversal of 612972388224 is 422883279216.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5373084 + ... + 5485979.

Almost surely, 2^612972388224 is an apocalyptic number.

612972388224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

612972388224 is an abundant number, since it is smaller than the sum of its proper divisors (1438902049896).

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

612972388224 is a wasteful number, since it uses less digits than its factorization.

612972388224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10859097 (or 10859075 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 612972388224 in words is "six hundred twelve billion, nine hundred seventy-two million, three hundred eighty-eight thousand, two hundred twenty-four".