6695427899 has 2 divisors, whose sum is σ = 6695427900. Its totient is φ = 6695427898.

The previous prime is 6695427887. The next prime is 6695427901. The reversal of 6695427899 is 9987245966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6695427899 - 2⁸ = 6695427643 is a prime.

Together with 6695427901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6695427839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347713949 + 3347713950.

It is an arithmetic number, because the mean of its divisors is an integer number (3347713950).

Almost surely, 2^6695427899 is an apocalyptic number.

6695427899 is a deficient number, since it is larger than the sum of its proper divisors (1).

6695427899 is an equidigital number, since it uses as much as digits as its factorization.

6695427899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58786560, while the sum is 65.

The square root of 6695427899 is about 81825.5944005297. The cubic root of 6695427899 is about 1884.7747104851.

The spelling of 6695427899 in words is "six billion, six hundred ninety-five million, four hundred twenty-seven thousand, eight hundred ninety-nine".