318880261459 has 2 divisors, whose sum is σ = 318880261460. Its totient is φ = 318880261458.

The previous prime is 318880261423. The next prime is 318880261493. The reversal of 318880261459 is 954162088813.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318880261459 is a prime.

It is a super-2 number, since 2×318880261459² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318880211459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159440130729 + 159440130730.

It is an arithmetic number, because the mean of its divisors is an integer number (159440130730).

Almost surely, 2^318880261459 is an apocalyptic number.

318880261459 is a deficient number, since it is larger than the sum of its proper divisors (1).

318880261459 is an equidigital number, since it uses as much as digits as its factorization.

318880261459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 318880261459 in words is "three hundred eighteen billion, eight hundred eighty million, two hundred sixty-one thousand, four hundred fifty-nine".