919091409146 has 16 divisors (see below), whose sum is σ = 1484474662080. Its totient is φ = 425182864320.

The previous prime is 919091409133. The next prime is 919091409149. The reversal of 919091409146 is 641904190919.

It is not an unprimeable number, because it can be changed into a prime (919091409149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229083590 + ... + 229087601.

It is an arithmetic number, because the mean of its divisors is an integer number (92779666380).

Almost surely, 2^919091409146 is an apocalyptic number.

919091409146 is a deficient number, since it is larger than the sum of its proper divisors (565383252934).

919091409146 is a wasteful number, since it uses less digits than its factorization.

919091409146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458171269.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 919091409146 in words is "nine hundred nineteen billion, ninety-one million, four hundred nine thousand, one hundred forty-six".