6695139463 has 2 divisors, whose sum is σ = 6695139464. Its totient is φ = 6695139462.

The previous prime is 6695139457. The next prime is 6695139467. The reversal of 6695139463 is 3649315966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6695139463 - 2²⁹ = 6158268551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6695139463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6695139467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347569731 + 3347569732.

It is an arithmetic number, because the mean of its divisors is an integer number (3347569732).

Almost surely, 2^6695139463 is an apocalyptic number.

6695139463 is a deficient number, since it is larger than the sum of its proper divisors (1).

6695139463 is an equidigital number, since it uses as much as digits as its factorization.

6695139463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 52.

The square root of 6695139463 is about 81823.8318767827. The cubic root of 6695139463 is about 1884.7476450162.

It can be divided in two parts, 669513 and 9463, that added together give a square (678976 = 824²).

The spelling of 6695139463 in words is "six billion, six hundred ninety-five million, one hundred thirty-nine thousand, four hundred sixty-three".