91986675000 has 384 divisors, whose sum is σ = 320986955520. Its totient is φ = 21772800000.

The previous prime is 91986674953. The next prime is 91986675013. The reversal of 91986675000 is 57668919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35473704 + ... + 35476296.

It is an arithmetic number, because the mean of its divisors is an integer number (835903530).

Almost surely, 2^91986675000 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 91986675000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160493477760).

91986675000 is an abundant number, since it is smaller than the sum of its proper divisors (229000280520).

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

91986675000 is a wasteful number, since it uses less digits than its factorization.

91986675000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 91986675000 in words is "ninety-one billion, nine hundred eighty-six million, six hundred seventy-five thousand".