91858283232 has 192 divisors, whose sum is σ = 253421602560. Its totient is φ = 29094912000.

The previous prime is 91858283213. The next prime is 91858283281. The reversal of 91858283232 is 23238285819.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 76484232 + ... + 76485432.

It is an arithmetic number, because the mean of its divisors is an integer number (1319904180).

Almost surely, 2^91858283232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91858283232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126710801280).

91858283232 is an abundant number, since it is smaller than the sum of its proper divisors (161563319328).

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

91858283232 is a wasteful number, since it uses less digits than its factorization.

91858283232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1649 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The spelling of 91858283232 in words is "ninety-one billion, eight hundred fifty-eight million, two hundred eighty-three thousand, two hundred thirty-two".