318986985079859 has 2 divisors, whose sum is σ = 318986985079860. Its totient is φ = 318986985079858.

The previous prime is 318986985079817. The next prime is 318986985079891. The reversal of 318986985079859 is 958970589689813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318986985079859 - 2⁸ = 318986985079603 is a prime.

It is not a weakly prime, because it can be changed into another prime (318986985079459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159493492539929 + 159493492539930.

It is an arithmetic number, because the mean of its divisors is an integer number (159493492539930).

Almost surely, 2^{318986985079859} is an apocalyptic number.

318986985079859 is a deficient number, since it is larger than the sum of its proper divisors (1).

318986985079859 is an equidigital number, since it uses as much as digits as its factorization.

318986985079859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84652646400, while the sum is 95.

The spelling of 318986985079859 in words is "three hundred eighteen trillion, nine hundred eighty-six billion, nine hundred eighty-five million, seventy-nine thousand, eight hundred fifty-nine".