19249242105 has 8 divisors (see below), whose sum is σ = 30798787392. Its totient is φ = 10266262448.

The previous prime is 19249242097. The next prime is 19249242127. The reversal of 19249242105 is 50124294291.

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 19249242105 - 2³ = 19249242097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641641389 + ... + 641641418.

It is an arithmetic number, because the mean of its divisors is an integer number (3849848424).

Almost surely, 2^19249242105 is an apocalyptic number.

19249242105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19249242105 is a deficient number, since it is larger than the sum of its proper divisors (11549545287).

19249242105 is a wasteful number, since it uses less digits than its factorization.

19249242105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283282815.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 19249242105 in words is "nineteen billion, two hundred forty-nine million, two hundred forty-two thousand, one hundred five".