1009191009092 has 48 divisors (see below), whose sum is σ = 2137647267840. Its totient is φ = 407232906912.

The previous prime is 1009191009059. The next prime is 1009191009097. The reversal of 1009191009092 is 2909001919001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1009191009097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5732228 + ... + 5905659.

It is an arithmetic number, because the mean of its divisors is an integer number (44534318080).

Almost surely, 2^{1009191009092} is an apocalyptic number.

It is an amenable number.

1009191009092 is an abundant number, since it is smaller than the sum of its proper divisors (1128456258748).

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

1009191009092 is a wasteful number, since it uses less digits than its factorization.

1009191009092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638080 (or 11638078 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 1009191009092 in words is "one trillion, nine billion, one hundred ninety-one million, nine thousand, ninety-two".