19229555768 has 8 divisors (see below), whose sum is σ = 36055417080. Its totient is φ = 9614777880.

The previous prime is 19229555767. The next prime is 19229555773. The reversal of 19229555768 is 86755592291.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19229555767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201847228 + ... + 1201847243.

It is an arithmetic number, because the mean of its divisors is an integer number (4506927135).

Almost surely, 2^19229555768 is an apocalyptic number.

It is an amenable number.

19229555768 is a deficient number, since it is larger than the sum of its proper divisors (16825861312).

19229555768 is a wasteful number, since it uses less digits than its factorization.

19229555768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403694477 (or 2403694473 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 59.

The spelling of 19229555768 in words is "nineteen billion, two hundred twenty-nine million, five hundred fifty-five thousand, seven hundred sixty-eight".