7864395314693 has 2 divisors, whose sum is σ = 7864395314694. Its totient is φ = 7864395314692.

The previous prime is 7864395314687. The next prime is 7864395314719. The reversal of 7864395314693 is 3964135934687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4724528265604 + 3139867049089 = 2173598^2 + 1771967^2 .

It is a cyclic number.

It is not a de Polignac number, because 7864395314693 - 2⁸ = 7864395314437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7864395314653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932197657346 + 3932197657347.

It is an arithmetic number, because the mean of its divisors is an integer number (3932197657347).

Almost surely, 2^{7864395314693} is an apocalyptic number.

It is an amenable number.

7864395314693 is a deficient number, since it is larger than the sum of its proper divisors (1).

7864395314693 is an equidigital number, since it uses as much as digits as its factorization.

7864395314693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352719360, while the sum is 68.

The spelling of 7864395314693 in words is "seven trillion, eight hundred sixty-four billion, three hundred ninety-five million, three hundred fourteen thousand, six hundred ninety-three".