91010909092 has 24 divisors (see below), whose sum is σ = 162891279936. Its totient is φ = 44477073888.

The previous prime is 91010909089. The next prime is 91010909141. The reversal of 91010909092 is 29090901019.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760398 + ... + 871909.

It is an arithmetic number, because the mean of its divisors is an integer number (6787136664).

Almost surely, 2^91010909092 is an apocalyptic number.

It is an amenable number.

91010909092 is a deficient number, since it is larger than the sum of its proper divisors (71880370844).

91010909092 is a wasteful number, since it uses less digits than its factorization.

91010909092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632627 (or 1632625 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 40.

The spelling of 91010909092 in words is "ninety-one billion, ten million, nine hundred nine thousand, ninety-two".