318457740541 has 2 divisors, whose sum is σ = 318457740542. Its totient is φ = 318457740540.

The previous prime is 318457740493. The next prime is 318457740551. The reversal of 318457740541 is 145047754813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227175203641 + 91282536900 = 476629^2 + 302130^2 .

It is a cyclic number.

It is not a de Polignac number, because 318457740541 - 2⁷ = 318457740413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318457740551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159228870270 + 159228870271.

It is an arithmetic number, because the mean of its divisors is an integer number (159228870271).

Almost surely, 2^318457740541 is an apocalyptic number.

It is an amenable number.

318457740541 is a deficient number, since it is larger than the sum of its proper divisors (1).

318457740541 is an equidigital number, since it uses as much as digits as its factorization.

318457740541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 318457740541 in words is "three hundred eighteen billion, four hundred fifty-seven million, seven hundred forty thousand, five hundred forty-one".