91010000910 has 32 divisors (see below), whose sum is σ = 218827782432. Its totient is φ = 24224469120.

The previous prime is 91010000909. The next prime is 91010000947. The reversal of 91010000910 is 1900001019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2787529 + ... + 2819988.

It is an arithmetic number, because the mean of its divisors is an integer number (6838368201).

Almost surely, 2^91010000910 is an apocalyptic number.

91010000910 is an abundant number, since it is smaller than the sum of its proper divisors (127817781522).

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

91010000910 is a wasteful number, since it uses less digits than its factorization.

91010000910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608068.

The product of its (nonzero) digits is 81, while the sum is 21.

Adding to 91010000910 its reverse (1900001019), we get a palindrome (92910001929).

The spelling of 91010000910 in words is "ninety-one billion, ten million, nine hundred ten", and thus it is an aban number.