316261064454109 has 2 divisors, whose sum is σ = 316261064454110. Its totient is φ = 316261064454108.

The previous prime is 316261064454001. The next prime is 316261064454119. The reversal of 316261064454109 is 901454460162613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186533588752900 + 129727475701209 = 13657730^2 + 11389797^2 .

It is a cyclic number.

It is not a de Polignac number, because 316261064454109 - 2¹³ = 316261064445917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316261064454119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158130532227054 + 158130532227055.

It is an arithmetic number, because the mean of its divisors is an integer number (158130532227055).

Almost surely, 2^{316261064454109} is an apocalyptic number.

It is an amenable number.

316261064454109 is a deficient number, since it is larger than the sum of its proper divisors (1).

316261064454109 is an equidigital number, since it uses as much as digits as its factorization.

316261064454109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 316261064454109 in words is "three hundred sixteen trillion, two hundred sixty-one billion, sixty-four million, four hundred fifty-four thousand, one hundred nine".