19830491151 has 16 divisors (see below), whose sum is σ = 26827573248. Its totient is φ = 13028163200.

The previous prime is 19830491147. The next prime is 19830491167. The reversal of 19830491151 is 15119403891.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19830491151 - 2² = 19830491147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19830491111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100410 + ... + 223031.

It is an arithmetic number, because the mean of its divisors is an integer number (1676723328).

Almost surely, 2^19830491151 is an apocalyptic number.

19830491151 is a deficient number, since it is larger than the sum of its proper divisors (6997082097).

19830491151 is a wasteful number, since it uses less digits than its factorization.

19830491151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323742.

The product of its (nonzero) digits is 38880, while the sum is 42.

The spelling of 19830491151 in words is "nineteen billion, eight hundred thirty million, four hundred ninety-one thousand, one hundred fifty-one".