91233893376 has 88 divisors (see below), whose sum is σ = 270190735440. Its totient is φ = 30411288576.

The previous prime is 91233893371. The next prime is 91233893381. The reversal of 91233893376 is 67339833219.

It is an interprime number because it is at equal distance from previous prime (91233893371) and next prime (91233893381).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91233893371) 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 7 ways as a sum of consecutive naturals, for example, 1622271 + ... + 1677566.

Almost surely, 2^91233893376 is an apocalyptic number.

91233893376 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91233893376 is an abundant number, since it is smaller than the sum of its proper divisors (178956842064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91233893376 is a wasteful number, since it uses less digits than its factorization.

91233893376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299866 (or 3299842 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 54.

The spelling of 91233893376 in words is "ninety-one billion, two hundred thirty-three million, eight hundred ninety-three thousand, three hundred seventy-six".