318339111877 has 2 divisors, whose sum is σ = 318339111878. Its totient is φ = 318339111876.

The previous prime is 318339111863. The next prime is 318339111901. The reversal of 318339111877 is 778111933813.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291196219876 + 27142892001 = 539626^2 + 164751^2 .

It is a cyclic number.

It is not a de Polignac number, because 318339111877 - 2²⁷ = 318204894149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318339111977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159169555938 + 159169555939.

It is an arithmetic number, because the mean of its divisors is an integer number (159169555939).

Almost surely, 2^318339111877 is an apocalyptic number.

It is an amenable number.

318339111877 is a deficient number, since it is larger than the sum of its proper divisors (1).

318339111877 is an equidigital number, since it uses as much as digits as its factorization.

318339111877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 52.

The spelling of 318339111877 in words is "three hundred eighteen billion, three hundred thirty-nine million, one hundred eleven thousand, eight hundred seventy-seven".