91044903133 has 16 divisors (see below), whose sum is σ = 97693516800. Its totient is φ = 84583586880.

The previous prime is 91044903097. The next prime is 91044903137. The reversal of 91044903133 is 33130944019.

It is a cyclic number.

It is not a de Polignac number, because 91044903133 - 2²¹ = 91042805981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91044903092 and 91044903101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91044903137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104363 + ... + 2147191.

It is an arithmetic number, because the mean of its divisors is an integer number (6105844800).

Almost surely, 2^91044903133 is an apocalyptic number.

It is an amenable number.

91044903133 is a deficient number, since it is larger than the sum of its proper divisors (6648613667).

91044903133 is a wasteful number, since it uses less digits than its factorization.

91044903133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45012.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 91044903133 in words is "ninety-one billion, forty-four million, nine hundred three thousand, one hundred thirty-three".