313698581893 has 2 divisors, whose sum is σ = 313698581894. Its totient is φ = 313698581892.

The previous prime is 313698581881. The next prime is 313698581899. The reversal of 313698581893 is 398185896313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313204764609 + 493817284 = 559647^2 + 22222^2 .

It is a cyclic number.

It is not a de Polignac number, because 313698581893 - 2³³ = 305108647301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313698581899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156849290946 + 156849290947.

It is an arithmetic number, because the mean of its divisors is an integer number (156849290947).

Almost surely, 2^313698581893 is an apocalyptic number.

It is an amenable number.

313698581893 is a deficient number, since it is larger than the sum of its proper divisors (1).

313698581893 is an equidigital number, since it uses as much as digits as its factorization.

313698581893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 64.

The spelling of 313698581893 in words is "three hundred thirteen billion, six hundred ninety-eight million, five hundred eighty-one thousand, eight hundred ninety-three".