10091819091 has 8 divisors (see below), whose sum is σ = 13514518480. Its totient is φ = 6698499552.

The previous prime is 10091819039. The next prime is 10091819137. The reversal of 10091819091 is 19091819001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10091819091 - 2⁷ = 10091818963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10091819291) 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, 7344160 + ... + 7345533.

It is an arithmetic number, because the mean of its divisors is an integer number (1689314810).

Almost surely, 2^10091819091 is an apocalyptic number.

10091819091 is a deficient number, since it is larger than the sum of its proper divisors (3422699389).

10091819091 is a wasteful number, since it uses less digits than its factorization.

10091819091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14689925.

The product of its (nonzero) digits is 5832, while the sum is 39.

The spelling of 10091819091 in words is "ten billion, ninety-one million, eight hundred nineteen thousand, ninety-one".