91453128100 has 36 divisors (see below), whose sum is σ = 203293621188. Its totient is φ = 35689024000.

The previous prime is 91453128071. The next prime is 91453128113. The reversal of 91453128100 is 182135419.

It can be written as a sum of positive squares in 6 ways, for example, as 12954537124 + 78498590976 = 113818^2 + 280176^2 .

It is a super-2 number, since 2×91453128100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11148721 + ... + 11156920.

It is an arithmetic number, because the mean of its divisors is an integer number (5647045033).

Almost surely, 2^91453128100 is an apocalyptic number.

It is an amenable number.

91453128100 is an abundant number, since it is smaller than the sum of its proper divisors (111840493088).

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

91453128100 is a wasteful number, since it uses less digits than its factorization.

91453128100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22305696 (or 22305689 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 91453128100 in words is "ninety-one billion, four hundred fifty-three million, one hundred twenty-eight thousand, one hundred".