91965073508 has 48 divisors (see below), whose sum is σ = 200754094464. Its totient is φ = 35812151040.

The previous prime is 91965073469. The next prime is 91965073517. The reversal of 91965073508 is 80537056919.

It is a super-3 number, since 3×91965073508³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 91965073508.

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 15 ways as a sum of consecutive naturals, for example, 532016 + ... + 683352.

It is an arithmetic number, because the mean of its divisors is an integer number (4182376968).

Almost surely, 2^91965073508 is an apocalyptic number.

It is an amenable number.

91965073508 is an abundant number, since it is smaller than the sum of its proper divisors (108789020956).

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

91965073508 is a wasteful number, since it uses less digits than its factorization.

91965073508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153332 (or 153330 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 91965073508 in words is "ninety-one billion, nine hundred sixty-five million, seventy-three thousand, five hundred eight".