19214215191 has 12 divisors (see below), whose sum is σ = 27972402432. Its totient is φ = 12708614016.

The previous prime is 19214215169. The next prime is 19214215193. The reversal of 19214215191 is 19151241291.

It is not a de Polignac number, because 19214215191 - 2¹⁰ = 19214214167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19214215193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8404026 + ... + 8406311.

It is an arithmetic number, because the mean of its divisors is an integer number (2331033536).

Almost surely, 2^19214215191 is an apocalyptic number.

19214215191 is a deficient number, since it is larger than the sum of its proper divisors (8758187241).

19214215191 is a wasteful number, since it uses less digits than its factorization.

19214215191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16810470 (or 16810467 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The spelling of 19214215191 in words is "nineteen billion, two hundred fourteen million, two hundred fifteen thousand, one hundred ninety-one".