91001449232983 has 2 divisors, whose sum is σ = 91001449232984. Its totient is φ = 91001449232982.

The previous prime is 91001449232959. The next prime is 91001449233001. The reversal of 91001449232983 is 38923294410019.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91001449232983 - 2⁹ = 91001449232471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91001449232933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45500724616491 + 45500724616492.

It is an arithmetic number, because the mean of its divisors is an integer number (45500724616492).

Almost surely, 2^{91001449232983} is an apocalyptic number.

91001449232983 is a deficient number, since it is larger than the sum of its proper divisors (1).

91001449232983 is an equidigital number, since it uses as much as digits as its factorization.

91001449232983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 91001449232983 in words is "ninety-one trillion, one billion, four hundred forty-nine million, two hundred thirty-two thousand, nine hundred eighty-three".