91967192512 has 112 divisors (see below), whose sum is σ = 200376019872. Its totient is φ = 41624616960.

The previous prime is 91967192423. The next prime is 91967192521. The reversal of 91967192512 is 21529176919.

It is a super-3 number, since 3×91967192512³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 91967192512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9455812 + ... + 9465532.

It is an arithmetic number, because the mean of its divisors is an integer number (1789071606).

Almost surely, 2^91967192512 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 91967192512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100188009936).

91967192512 is an abundant number, since it is smaller than the sum of its proper divisors (108408827360).

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

91967192512 is a wasteful number, since it uses less digits than its factorization.

91967192512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966 (or 9956 counting only the distinct ones).

The product of its digits is 612360, while the sum is 52.

The spelling of 91967192512 in words is "ninety-one billion, nine hundred sixty-seven million, one hundred ninety-two thousand, five hundred twelve".