909140914091 has 8 divisors (see below), whose sum is σ = 939444624768. Its totient is φ = 879813759000.

The previous prime is 909140914057. The next prime is 909140914103. The reversal of 909140914091 is 190419041909.

It is a de Polignac number, because none of the positive numbers 2^k-909140914091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (909140914391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15228860 + ... + 15288441.

It is an arithmetic number, because the mean of its divisors is an integer number (117430578096).

Almost surely, 2^909140914091 is an apocalyptic number.

909140914091 is a deficient number, since it is larger than the sum of its proper divisors (30303710677).

909140914091 is an frugal number, since it uses more digits than its factorization.

909140914091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30517394 (or 30517332 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 909140914091 in words is "nine hundred nine billion, one hundred forty million, nine hundred fourteen thousand, ninety-one".