91433026108 has 48 divisors (see below), whose sum is σ = 173536020000. Its totient is φ = 42015587328.

The previous prime is 91433026081. The next prime is 91433026109. The reversal of 91433026108 is 80162033419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91433026109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230968 + ... + 486016.

It is an arithmetic number, because the mean of its divisors is an integer number (3615333750).

Almost surely, 2^91433026108 is an apocalyptic number.

It is an amenable number.

91433026108 is a deficient number, since it is larger than the sum of its proper divisors (82102993892).

91433026108 is a wasteful number, since it uses less digits than its factorization.

91433026108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255214 (or 255212 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 91433026108 in words is "ninety-one billion, four hundred thirty-three million, twenty-six thousand, one hundred eight".