12817057169 has 16 divisors (see below), whose sum is σ = 14718830976. Its totient is φ = 10933094400.

The previous prime is 12817057159. The next prime is 12817057207. The reversal of 12817057169 is 96175071821.

It is a cyclic number.

It is not a de Polignac number, because 12817057169 - 2²⁰ = 12816008593 is a prime.

It is a super-2 number, since 2×12817057169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12817057159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417874 + ... + 1426884.

It is an arithmetic number, because the mean of its divisors is an integer number (919926936).

Almost surely, 2^12817057169 is an apocalyptic number.

It is an amenable number.

12817057169 is a deficient number, since it is larger than the sum of its proper divisors (1901773807).

12817057169 is an equidigital number, since it uses as much as digits as its factorization.

12817057169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976.

The product of its (nonzero) digits is 211680, while the sum is 47.

The spelling of 12817057169 in words is "twelve billion, eight hundred seventeen million, fifty-seven thousand, one hundred sixty-nine".