318676271687 has 2 divisors, whose sum is σ = 318676271688. Its totient is φ = 318676271686.

The previous prime is 318676271681. The next prime is 318676271717. The reversal of 318676271687 is 786172676813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318676271687 - 2⁶ = 318676271623 is a prime.

It is a super-2 number, since 2×318676271687² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318676271681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159338135843 + 159338135844.

It is an arithmetic number, because the mean of its divisors is an integer number (159338135844).

Almost surely, 2^318676271687 is an apocalyptic number.

318676271687 is a deficient number, since it is larger than the sum of its proper divisors (1).

318676271687 is an equidigital number, since it uses as much as digits as its factorization.

318676271687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28449792, while the sum is 62.

The spelling of 318676271687 in words is "three hundred eighteen billion, six hundred seventy-six million, two hundred seventy-one thousand, six hundred eighty-seven".