6172845672839 has 4 divisors (see below), whose sum is σ = 6232776213456. Its totient is φ = 6112915132224.

The previous prime is 6172845672809. The next prime is 6172845672857. The reversal of 6172845672839 is 9382765482716.

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 6172845672839 - 2²⁸ = 6172577237383 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 (6172845672809) 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, 29965270154 + ... + 29965270359.

It is an arithmetic number, because the mean of its divisors is an integer number (1558194053364).

Almost surely, 2^{6172845672839} is an apocalyptic number.

6172845672839 is a deficient number, since it is larger than the sum of its proper divisors (59930540617).

6172845672839 is a wasteful number, since it uses less digits than its factorization.

6172845672839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59930540616.

The product of its digits is 243855360, while the sum is 68.

The spelling of 6172845672839 in words is "six trillion, one hundred seventy-two billion, eight hundred forty-five million, six hundred seventy-two thousand, eight hundred thirty-nine".