91143890200 has 48 divisors (see below), whose sum is σ = 231174054360. Its totient is φ = 33143232000.

The previous prime is 91143890147. The next prime is 91143890237. The reversal of 91143890200 is 209834119.

It is a self number, because there is not a number n which added to its sum of digits gives 91143890200.

It is a congruent number.

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, 20712321 + ... + 20716720.

Almost surely, 2^91143890200 is an apocalyptic number.

It is an amenable number.

91143890200 is an abundant number, since it is smaller than the sum of its proper divisors (140030164160).

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

91143890200 is a wasteful number, since it uses less digits than its factorization.

91143890200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41429068 (or 41429059 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 91143890200 in words is "ninety-one billion, one hundred forty-three million, eight hundred ninety thousand, two hundred".