19118212149 has 8 divisors (see below), whose sum is σ = 25557507072. Its totient is φ = 12712196000.

The previous prime is 19118212117. The next prime is 19118212153. The reversal of 19118212149 is 94121281191.

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

It is a cyclic number.

It is not a de Polignac number, because 19118212149 - 2⁵ = 19118212117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19118212109) 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, 8318352 + ... + 8320649.

It is an arithmetic number, because the mean of its divisors is an integer number (3194688384).

Almost surely, 2^19118212149 is an apocalyptic number.

It is an amenable number.

19118212149 is a deficient number, since it is larger than the sum of its proper divisors (6439294923).

19118212149 is a wasteful number, since it uses less digits than its factorization.

19118212149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16639387.

The product of its digits is 10368, while the sum is 39.

The spelling of 19118212149 in words is "nineteen billion, one hundred eighteen million, two hundred twelve thousand, one hundred forty-nine".