12685745833 has 2 divisors, whose sum is σ = 12685745834. Its totient is φ = 12685745832.

The previous prime is 12685745803. The next prime is 12685745837. The reversal of 12685745833 is 33854758621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12622971904 + 62773929 = 112352^2 + 7923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12685745833 is a prime.

It is not a weakly prime, because it can be changed into another prime (12685745837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342872916 + 6342872917.

It is an arithmetic number, because the mean of its divisors is an integer number (6342872917).

Almost surely, 2^12685745833 is an apocalyptic number.

It is an amenable number.

12685745833 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685745833 is an equidigital number, since it uses as much as digits as its factorization.

12685745833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 52.

The spelling of 12685745833 in words is "twelve billion, six hundred eighty-five million, seven hundred forty-five thousand, eight hundred thirty-three".