4251178091 has 2 divisors, whose sum is σ = 4251178092. Its totient is φ = 4251178090.

The previous prime is 4251178033. The next prime is 4251178097. The reversal of 4251178091 is 1908711524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4251178091 - 2¹⁰ = 4251177067 is a prime.

It is a super-2 number, since 2×4251178091² = 36145030322796808562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4251178097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125589045 + 2125589046.

It is an arithmetic number, because the mean of its divisors is an integer number (2125589046).

Almost surely, 2^4251178091 is an apocalyptic number.

4251178091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251178091 is an equidigital number, since it uses as much as digits as its factorization.

4251178091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 4251178091 is about 65201.0589714615. The cubic root of 4251178091 is about 1619.9555557334.

The spelling of 4251178091 in words is "four billion, two hundred fifty-one million, one hundred seventy-eight thousand, ninety-one".