7657122427 has 2 divisors, whose sum is σ = 7657122428. Its totient is φ = 7657122426.

The previous prime is 7657122401. The next prime is 7657122433. The reversal of 7657122427 is 7242217567.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7657122427 - 2⁷ = 7657122299 is a prime.

It is not a weakly prime, because it can be changed into another prime (7657122457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3828561213 + 3828561214.

It is an arithmetic number, because the mean of its divisors is an integer number (3828561214).

Almost surely, 2^7657122427 is an apocalyptic number.

7657122427 is a deficient number, since it is larger than the sum of its proper divisors (1).

7657122427 is an equidigital number, since it uses as much as digits as its factorization.

7657122427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 43.

The square root of 7657122427 is about 87504.9851551327. The cubic root of 7657122427 is about 1971.0086503375.

The spelling of 7657122427 in words is "seven billion, six hundred fifty-seven million, one hundred twenty-two thousand, four hundred twenty-seven".