386279318693 has 2 divisors, whose sum is σ = 386279318694. Its totient is φ = 386279318692.

The previous prime is 386279318681. The next prime is 386279318699. The reversal of 386279318693 is 396813972683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249247567009 + 137031751684 = 499247^2 + 370178^2 .

It is a cyclic number.

It is not a de Polignac number, because 386279318693 - 2³⁸ = 111401411749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386279318699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193139659346 + 193139659347.

It is an arithmetic number, because the mean of its divisors is an integer number (193139659347).

Almost surely, 2^386279318693 is an apocalyptic number.

It is an amenable number.

386279318693 is a deficient number, since it is larger than the sum of its proper divisors (1).

386279318693 is an equidigital number, since it uses as much as digits as its factorization.

386279318693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 65.

The spelling of 386279318693 in words is "three hundred eighty-six billion, two hundred seventy-nine million, three hundred eighteen thousand, six hundred ninety-three".