612799434605 has 24 divisors (see below), whose sum is σ = 792036687672. Its totient is φ = 453581336576.

The previous prime is 612799434589. The next prime is 612799434613. The reversal of 612799434605 is 506434997216.

It can be written as a sum of positive squares in 4 ways, for example, as 292458150436 + 320341284169 = 540794^2 + 565987^2 .

It is not a de Polignac number, because 612799434605 - 2⁴ = 612799434589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 739652 + ... + 1331421.

It is an arithmetic number, because the mean of its divisors is an integer number (33001528653).

Almost surely, 2^612799434605 is an apocalyptic number.

It is an amenable number.

612799434605 is a deficient number, since it is larger than the sum of its proper divisors (179237253067).

612799434605 is a wasteful number, since it uses less digits than its factorization.

612799434605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071213 (or 2071154 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 612799434605 in words is "six hundred twelve billion, seven hundred ninety-nine million, four hundred thirty-four thousand, six hundred five".