617172845377 has 8 divisors (see below), whose sum is σ = 682762277952. Its totient is φ = 553163881200.

The previous prime is 617172845363. The next prime is 617172845413. The reversal of 617172845377 is 773548271716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 617172845377 - 2³⁹ = 67417031489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (617172843377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395116278 + ... + 395117839.

It is an arithmetic number, because the mean of its divisors is an integer number (85345284744).

Almost surely, 2^617172845377 is an apocalyptic number.

It is an amenable number.

617172845377 is a deficient number, since it is larger than the sum of its proper divisors (65589432575).

617172845377 is a wasteful number, since it uses less digits than its factorization.

617172845377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790234199.

The product of its digits is 13829760, while the sum is 58.

The spelling of 617172845377 in words is "six hundred seventeen billion, one hundred seventy-two million, eight hundred forty-five thousand, three hundred seventy-seven".