19118910028 has 24 divisors (see below), whose sum is σ = 33642398720. Its totient is φ = 9506866320.

The previous prime is 19118910007. The next prime is 19118910049. The reversal of 19118910028 is 82001981191.

It is an interprime number because it is at equal distance from previous prime (19118910007) and next prime (19118910049).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193053 + ... + 1208971.

Almost surely, 2^19118910028 is an apocalyptic number.

It is an amenable number.

19118910028 is a deficient number, since it is larger than the sum of its proper divisors (14523488692).

19118910028 is a wasteful number, since it uses less digits than its factorization.

19118910028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17557 (or 17555 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 40.

The spelling of 19118910028 in words is "nineteen billion, one hundred eighteen million, nine hundred ten thousand, twenty-eight".