4249158691 has 2 divisors, whose sum is σ = 4249158692. Its totient is φ = 4249158690.

The previous prime is 4249158659. The next prime is 4249158757. The reversal of 4249158691 is 1968519424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4249158691 - 2⁵ = 4249158659 is a prime.

It is not a weakly prime, because it can be changed into another prime (4249158611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2124579345 + 2124579346.

It is an arithmetic number, because the mean of its divisors is an integer number (2124579346).

Almost surely, 2^4249158691 is an apocalyptic number.

4249158691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4249158691 is an equidigital number, since it uses as much as digits as its factorization.

4249158691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The square root of 4249158691 is about 65185.5711871884. The cubic root of 4249158691 is about 1619.6990106612.

The spelling of 4249158691 in words is "four billion, two hundred forty-nine million, one hundred fifty-eight thousand, six hundred ninety-one".