4444140091 has 2 divisors, whose sum is σ = 4444140092. Its totient is φ = 4444140090.

The previous prime is 4444140053. The next prime is 4444140121. The reversal of 4444140091 is 1900414444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4444140091 - 2⁷ = 4444139963 is a prime.

It is a super-2 number, since 2×4444140091² = 39500762296866976562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4444140011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222070045 + 2222070046.

It is an arithmetic number, because the mean of its divisors is an integer number (2222070046).

Almost surely, 2^4444140091 is an apocalyptic number.

4444140091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444140091 is an equidigital number, since it uses as much as digits as its factorization.

4444140091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4444140091 is about 66664.3839767533. The cubic root of 4444140091 is about 1644.1038520233.

The spelling of 4444140091 in words is "four billion, four hundred forty-four million, one hundred forty thousand, ninety-one".