853079220017 has 2 divisors, whose sum is σ = 853079220018. Its totient is φ = 853079220016.

The previous prime is 853079219989. The next prime is 853079220031. The reversal of 853079220017 is 710022970358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487935778576 + 365143441441 = 698524^2 + 604271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853079220017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 853079220017.

It is not a weakly prime, because it can be changed into another prime (853079220317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426539610008 + 426539610009.

It is an arithmetic number, because the mean of its divisors is an integer number (426539610009).

Almost surely, 2^853079220017 is an apocalyptic number.

It is an amenable number.

853079220017 is a deficient number, since it is larger than the sum of its proper divisors (1).

853079220017 is an equidigital number, since it uses as much as digits as its factorization.

853079220017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 853079220017 in words is "eight hundred fifty-three billion, seventy-nine million, two hundred twenty thousand, seventeen".