214403241991 has 2 divisors, whose sum is σ = 214403241992. Its totient is φ = 214403241990.

The previous prime is 214403241977. The next prime is 214403242043. The reversal of 214403241991 is 199142304412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214403241991 - 2¹¹ = 214403239943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214403241971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107201620995 + 107201620996.

It is an arithmetic number, because the mean of its divisors is an integer number (107201620996).

Almost surely, 2^214403241991 is an apocalyptic number.

214403241991 is a deficient number, since it is larger than the sum of its proper divisors (1).

214403241991 is an equidigital number, since it uses as much as digits as its factorization.

214403241991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 214403241991 in words is "two hundred fourteen billion, four hundred three million, two hundred forty-one thousand, nine hundred ninety-one".