909091010010 has 32 divisors (see below), whose sum is σ = 2182628799360. Its totient is φ = 242334227648.

The previous prime is 909091009993. The next prime is 909091010041. The reversal of 909091010010 is 10010190909.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 909091010010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5545470 + ... + 5707049.

It is an arithmetic number, because the mean of its divisors is an integer number (68207149980).

Almost surely, 2^909091010010 is an apocalyptic number.

909091010010 is an abundant number, since it is smaller than the sum of its proper divisors (1273537789350).

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

909091010010 is a wasteful number, since it uses less digits than its factorization.

909091010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11255222.

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 909091010010 in words is "nine hundred nine billion, ninety-one million, ten thousand, ten".