19268093489 has 4 divisors (see below), whose sum is σ = 19280359920. Its totient is φ = 19255827060.

The previous prime is 19268093479. The next prime is 19268093491. The reversal of 19268093489 is 98439086291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19268093489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19268093419) 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 3 ways as a sum of consecutive naturals, for example, 6130859 + ... + 6134000.

It is an arithmetic number, because the mean of its divisors is an integer number (4820089980).

Almost surely, 2^19268093489 is an apocalyptic number.

It is an amenable number.

19268093489 is a deficient number, since it is larger than the sum of its proper divisors (12266431).

19268093489 is a wasteful number, since it uses less digits than its factorization.

19268093489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266430.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The spelling of 19268093489 in words is "nineteen billion, two hundred sixty-eight million, ninety-three thousand, four hundred eighty-nine".