91001449232933 has 2 divisors, whose sum is σ = 91001449232934. Its totient is φ = 91001449232932.

The previous prime is 91001449232917. The next prime is 91001449232959. The reversal of 91001449232933 is 33923294410019.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89766188148004 + 1235261084929 = 9474502^2 + 1111423^2 .

It is a cyclic number.

It is not a de Polignac number, because 91001449232933 - 2⁴ = 91001449232917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91001449232983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45500724616466 + 45500724616467.

It is an arithmetic number, because the mean of its divisors is an integer number (45500724616467).

Almost surely, 2^{91001449232933} is an apocalyptic number.

It is an amenable number.

91001449232933 is a deficient number, since it is larger than the sum of its proper divisors (1).

91001449232933 is an equidigital number, since it uses as much as digits as its factorization.

91001449232933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 91001449232933 in words is "ninety-one trillion, one billion, four hundred forty-nine million, two hundred thirty-two thousand, nine hundred thirty-three".