8313694639639 has 2 divisors, whose sum is σ = 8313694639640. Its totient is φ = 8313694639638.

The previous prime is 8313694639609. The next prime is 8313694639661. The reversal of 8313694639639 is 9369364963138.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8313694639639 - 2¹⁵ = 8313694606871 is a prime.

It is a super-2 number, since 2×8313694639639² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8313694639609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4156847319819 + 4156847319820.

It is an arithmetic number, because the mean of its divisors is an integer number (4156847319820).

Almost surely, 2^{8313694639639} is an apocalyptic number.

8313694639639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8313694639639 is an equidigital number, since it uses as much as digits as its factorization.

8313694639639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408146688, while the sum is 70.

The spelling of 8313694639639 in words is "eight trillion, three hundred thirteen billion, six hundred ninety-four million, six hundred thirty-nine thousand, six hundred thirty-nine".