612254385599 has 4 divisors (see below), whose sum is σ = 628801801464. Its totient is φ = 595706969736.

The previous prime is 612254385571. The next prime is 612254385607. The reversal of 612254385599 is 995583452216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 612254385599 - 2²⁰ = 612253337023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612254387599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8273707877 + ... + 8273707950.

It is an arithmetic number, because the mean of its divisors is an integer number (157200450366).

Almost surely, 2^612254385599 is an apocalyptic number.

612254385599 is a deficient number, since it is larger than the sum of its proper divisors (16547415865).

612254385599 is a wasteful number, since it uses less digits than its factorization.

612254385599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16547415864.

The product of its digits is 23328000, while the sum is 59.

The spelling of 612254385599 in words is "six hundred twelve billion, two hundred fifty-four million, three hundred eighty-five thousand, five hundred ninety-nine".