2308869171857 has 2 divisors, whose sum is σ = 2308869171858. Its totient is φ = 2308869171856.

The previous prime is 2308869171839. The next prime is 2308869171883. The reversal of 2308869171857 is 7581719688032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2026705293376 + 282163878481 = 1423624^2 + 531191^2 .

It is a cyclic number.

It is not a de Polignac number, because 2308869171857 - 2¹⁸ = 2308868909713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2308869171793 and 2308869171802.

It is not a weakly prime, because it can be changed into another prime (2308869171827) 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 as a sum of consecutive naturals, namely, 1154434585928 + 1154434585929.

It is an arithmetic number, because the mean of its divisors is an integer number (1154434585929).

Almost surely, 2^{2308869171857} is an apocalyptic number.

It is an amenable number.

2308869171857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2308869171857 is an equidigital number, since it uses as much as digits as its factorization.

2308869171857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40642560, while the sum is 65.

The spelling of 2308869171857 in words is "two trillion, three hundred eight billion, eight hundred sixty-nine million, one hundred seventy-one thousand, eight hundred fifty-seven".