9091919092 has 12 divisors (see below), whose sum is σ = 15915763360. Its totient is φ = 4544558136.

The previous prime is 9091919051. The next prime is 9091919099. The reversal of 9091919092 is 2909191909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9091919099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335688 + ... + 361759.

Almost surely, 2^9091919092 is an apocalyptic number.

It is an amenable number.

9091919092 is a deficient number, since it is larger than the sum of its proper divisors (6823844268).

9091919092 is a wasteful number, since it uses less digits than its factorization.

9091919092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700710 (or 700708 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 49.

The square root of 9091919092 is about 95351.5552678613. Note that the first 3 decimals coincide. The cubic root of 9091919092 is about 2087.1413105822.

It can be divided in two parts, 90919 and 19092, that added together give a palindrome (110011).

The spelling of 9091919092 in words is "nine billion, ninety-one million, nine hundred nineteen thousand, ninety-two".