909091001010 has 32 divisors (see below), whose sum is σ = 2296650951360. Its totient is φ = 229665094848.

The previous prime is 909091001003. The next prime is 909091001033. The reversal of 909091001010 is 10100190909.

909091001010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 797447677 + ... + 797448816.

It is an arithmetic number, because the mean of its divisors is an integer number (71770342230).

Almost surely, 2^909091001010 is an apocalyptic number.

909091001010 is an abundant number, since it is smaller than the sum of its proper divisors (1387559950350).

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

909091001010 is a wasteful number, since it uses less digits than its factorization.

909091001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594896522.

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

Adding to 909091001010 its reverse (10100190909), we get a palindrome (919191191919).

The spelling of 909091001010 in words is "nine hundred nine billion, ninety-one million, one thousand, ten".