91433369217 has 16 divisors (see below), whose sum is σ = 130649800320. Its totient is φ = 56729515392.

The previous prime is 91433369207. The next prime is 91433369219. The reversal of 91433369217 is 71296333419.

It is not a de Polignac number, because 91433369217 - 2¹⁴ = 91433352833 is a prime.

It is a super-2 number, since 2×91433369217² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91433369219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17904492 + ... + 17909597.

It is an arithmetic number, because the mean of its divisors is an integer number (8165612520).

Almost surely, 2^91433369217 is an apocalyptic number.

It is an amenable number.

91433369217 is a deficient number, since it is larger than the sum of its proper divisors (39216431103).

91433369217 is a wasteful number, since it uses less digits than its factorization.

91433369217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35814152.

The product of its digits is 734832, while the sum is 48.

The spelling of 91433369217 in words is "ninety-one billion, four hundred thirty-three million, three hundred sixty-nine thousand, two hundred seventeen".