612691324344 has 480 divisors, whose sum is σ = 1926710607360. Its totient is φ = 181724653440.

The previous prime is 612691324309. The next prime is 612691324369. The reversal of 612691324344 is 443423196216.

612691324344 is a `hidden beast` number, since 6 + 126 + 91 + 3 + 2 + 434 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 612691324344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1171493667 + ... + 1171494189.

It is an arithmetic number, because the mean of its divisors is an integer number (4013980432).

Almost surely, 2^612691324344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612691324344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (963355303680).

612691324344 is an abundant number, since it is smaller than the sum of its proper divisors (1314019283016).

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

612691324344 is a wasteful number, since it uses less digits than its factorization.

612691324344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 829 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 612691324344 in words is "six hundred twelve billion, six hundred ninety-one million, three hundred twenty-four thousand, three hundred forty-four".