612172855252583 has 4 divisors (see below), whose sum is σ = 627103900502688. Its totient is φ = 597241810002480.

The previous prime is 612172855252579. The next prime is 612172855252649. The reversal of 612172855252583 is 385252558271216.

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 612172855252583 - 2² = 612172855252579 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 (612172855252523) 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, 7465522624991 + ... + 7465522625072.

It is an arithmetic number, because the mean of its divisors is an integer number (156775975125672).

Almost surely, 2^{612172855252583} is an apocalyptic number.

612172855252583 is a deficient number, since it is larger than the sum of its proper divisors (14931045250105).

612172855252583 is a wasteful number, since it uses less digits than its factorization.

612172855252583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14931045250104.

The product of its digits is 80640000, while the sum is 62.

The spelling of 612172855252583 in words is "six hundred twelve trillion, one hundred seventy-two billion, eight hundred fifty-five million, two hundred fifty-two thousand, five hundred eighty-three".