19000636234 has 8 divisors (see below), whose sum is σ = 30001004640. Its totient is φ = 9000301356.

The previous prime is 19000636229. The next prime is 19000636247. The reversal of 19000636234 is 43263600091.

It is a happy number.

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

It is a super-2 number, since 2×19000636234² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19000636234.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250008334 + ... + 250008409.

It is an arithmetic number, because the mean of its divisors is an integer number (3750125580).

Almost surely, 2^19000636234 is an apocalyptic number.

19000636234 is a deficient number, since it is larger than the sum of its proper divisors (11000368406).

19000636234 is a wasteful number, since it uses less digits than its factorization.

19000636234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500016764.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 19000636234 in words is "nineteen billion, six hundred thirty-six thousand, two hundred thirty-four".