6845890257179 has 4 divisors (see below), whose sum is σ = 6847426247784. Its totient is φ = 6844354266576.

The previous prime is 6845890257169. The next prime is 6845890257187. The reversal of 6845890257179 is 9717520985486.

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-6845890257179 is a prime.

It is a super-2 number, since 2×6845890257179² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6845890257169) 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, 767988617 + ... + 767997530.

It is an arithmetic number, because the mean of its divisors is an integer number (1711856561946).

Almost surely, 2^{6845890257179} is an apocalyptic number.

6845890257179 is a deficient number, since it is larger than the sum of its proper divisors (1535990605).

6845890257179 is a wasteful number, since it uses less digits than its factorization.

6845890257179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535990604.

The product of its (nonzero) digits is 304819200, while the sum is 71.

The spelling of 6845890257179 in words is "six trillion, eight hundred forty-five billion, eight hundred ninety million, two hundred fifty-seven thousand, one hundred seventy-nine".