19091819092 has 12 divisors (see below), whose sum is σ = 34488447616. Its totient is φ = 9237976920.

The previous prime is 19091819083. The next prime is 19091819143. The reversal of 19091819092 is 29091819091.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76983018 + ... + 76983265.

Almost surely, 2^19091819092 is an apocalyptic number.

It is an amenable number.

19091819092 is a deficient number, since it is larger than the sum of its proper divisors (15396628524).

19091819092 is a wasteful number, since it uses less digits than its factorization.

19091819092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153966318 (or 153966316 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 49.

Subtracting 19091819092 from its reverse (29091819091), we obtain a palindrome (9999999999).

The spelling of 19091819092 in words is "nineteen billion, ninety-one million, eight hundred nineteen thousand, ninety-two".