617842337774323 has 4 divisors (see below), whose sum is σ = 617868585401320. Its totient is φ = 617816090147328.

The previous prime is 617842337774287. The next prime is 617842337774371. The reversal of 617842337774323 is 323477733248716.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617842337774323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617842337772323) 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, 13123778190 + ... + 13123825267.

It is an arithmetic number, because the mean of its divisors is an integer number (154467146350330).

Almost surely, 2^{617842337774323} is an apocalyptic number.

617842337774323 is a deficient number, since it is larger than the sum of its proper divisors (26247626997).

617842337774323 is a wasteful number, since it uses less digits than its factorization.

617842337774323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26247626996.

The product of its digits is 597445632, while the sum is 67.

The spelling of 617842337774323 in words is "six hundred seventeen trillion, eight hundred forty-two billion, three hundred thirty-seven million, seven hundred seventy-four thousand, three hundred twenty-three".