91035800904 has 32 divisors (see below), whose sum is σ = 240977121120. Its totient is φ = 28560251136.

The previous prime is 91035800897. The next prime is 91035800927. The reversal of 91035800904 is 40900853019.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111563074 + ... + 111563889.

It is an arithmetic number, because the mean of its divisors is an integer number (7530535035).

Almost surely, 2^91035800904 is an apocalyptic number.

It is an amenable number.

91035800904 is an abundant number, since it is smaller than the sum of its proper divisors (149941320216).

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

91035800904 is a wasteful number, since it uses less digits than its factorization.

91035800904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223126989 (or 223126985 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 91035800904 in words is "ninety-one billion, thirty-five million, eight hundred thousand, nine hundred four".