7688393163131 has 2 divisors, whose sum is σ = 7688393163132. Its totient is φ = 7688393163130.

The previous prime is 7688393163127. The next prime is 7688393163167. The reversal of 7688393163131 is 1313613938867.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7688393163131 - 2² = 7688393163127 is a prime.

It is a super-2 number, since 2×7688393163131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7688393163331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3844196581565 + 3844196581566.

It is an arithmetic number, because the mean of its divisors is an integer number (3844196581566).

Almost surely, 2^{7688393163131} is an apocalyptic number.

7688393163131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7688393163131 is an equidigital number, since it uses as much as digits as its factorization.

7688393163131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 59.

The spelling of 7688393163131 in words is "seven trillion, six hundred eighty-eight billion, three hundred ninety-three million, one hundred sixty-three thousand, one hundred thirty-one".