7849666427 has 2 divisors, whose sum is σ = 7849666428. Its totient is φ = 7849666426.

The previous prime is 7849666423. The next prime is 7849666537. The reversal of 7849666427 is 7246669487.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7849666427 - 2² = 7849666423 is a prime.

It is not a weakly prime, because it can be changed into another prime (7849666423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3924833213 + 3924833214.

It is an arithmetic number, because the mean of its divisors is an integer number (3924833214).

Almost surely, 2^7849666427 is an apocalyptic number.

7849666427 is a deficient number, since it is larger than the sum of its proper divisors (1).

7849666427 is an equidigital number, since it uses as much as digits as its factorization.

7849666427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 59.

The square root of 7849666427 is about 88598.3432520044. The cubic root of 7849666427 is about 1987.3928997415.

The spelling of 7849666427 in words is "seven billion, eight hundred forty-nine million, six hundred sixty-six thousand, four hundred twenty-seven".