91032919000 has 64 divisors (see below), whose sum is σ = 222278696640. Its totient is φ = 34829977600.

The previous prime is 91032918983. The next prime is 91032919001. The reversal of 91032919000 is 91923019.

It is a super-2 number, since 2×91032919000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91032919001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1955977 + ... + 2001976.

It is an arithmetic number, because the mean of its divisors is an integer number (3473104635).

Almost surely, 2^91032919000 is an apocalyptic number.

It is an amenable number.

91032919000 is an abundant number, since it is smaller than the sum of its proper divisors (131245777640).

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

91032919000 is a wasteful number, since it uses less digits than its factorization.

91032919000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957997 (or 3957983 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 34.

The spelling of 91032919000 in words is "ninety-one billion, thirty-two million, nine hundred nineteen thousand".