4291697251 has 2 divisors, whose sum is σ = 4291697252. Its totient is φ = 4291697250.

The previous prime is 4291697239. The next prime is 4291697279. The reversal of 4291697251 is 1527961924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4291697251 - 2²¹ = 4289600099 is a prime.

It is not a weakly prime, because it can be changed into another prime (4291697231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2145848625 + 2145848626.

It is an arithmetic number, because the mean of its divisors is an integer number (2145848626).

Almost surely, 2^4291697251 is an apocalyptic number.

4291697251 is a deficient number, since it is larger than the sum of its proper divisors (1).

4291697251 is an equidigital number, since it uses as much as digits as its factorization.

4291697251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 4291697251 is about 65511.0467860192. The cubic root of 4291697251 is about 1625.0860389631.

The spelling of 4291697251 in words is "four billion, two hundred ninety-one million, six hundred ninety-seven thousand, two hundred fifty-one".