4291390991999 has 2 divisors, whose sum is σ = 4291390992000. Its totient is φ = 4291390991998.

The previous prime is 4291390991831. The next prime is 4291390992019. The reversal of 4291390991999 is 9991990931924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4291390991999 - 2¹² = 4291390987903 is a prime.

It is a super-2 number, since 2×4291390991999² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4291390991099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2145695495999 + 2145695496000.

It is an arithmetic number, because the mean of its divisors is an integer number (2145695496000).

Almost surely, 2^{4291390991999} is an apocalyptic number.

4291390991999 is a deficient number, since it is larger than the sum of its proper divisors (1).

4291390991999 is an equidigital number, since it uses as much as digits as its factorization.

4291390991999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 114791256, while the sum is 74.

The spelling of 4291390991999 in words is "four trillion, two hundred ninety-one billion, three hundred ninety million, nine hundred ninety-one thousand, nine hundred ninety-nine".