91868264896 has 56 divisors (see below), whose sum is σ = 188898361344. Its totient is φ = 44283114240.

The previous prime is 91868264879. The next prime is 91868264897. The reversal of 91868264896 is 69846286819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91868264897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433761 + ... + 609823.

It is an arithmetic number, because the mean of its divisors is an integer number (3373185024).

Almost surely, 2^91868264896 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 91868264896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94449180672).

91868264896 is an abundant number, since it is smaller than the sum of its proper divisors (97030096448).

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

91868264896 is a wasteful number, since it uses less digits than its factorization.

91868264896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176369 (or 176359 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 67.

The spelling of 91868264896 in words is "ninety-one billion, eight hundred sixty-eight million, two hundred sixty-four thousand, eight hundred ninety-six".