19001127018 has 32 divisors (see below), whose sum is σ = 40249851264. Its totient is φ = 5959334912.

The previous prime is 19001127017. The next prime is 19001127031. The reversal of 19001127018 is 81072110091.

It is a super-2 number, since 2×19001127018² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19001127017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333346 + ... + 386162.

It is an arithmetic number, because the mean of its divisors is an integer number (1257807852).

Almost surely, 2^19001127018 is an apocalyptic number.

19001127018 is an abundant number, since it is smaller than the sum of its proper divisors (21248724246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19001127018 is a wasteful number, since it uses less digits than its factorization.

19001127018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56366.

The product of its (nonzero) digits is 1008, while the sum is 30.

The spelling of 19001127018 in words is "nineteen billion, one million, one hundred twenty-seven thousand, eighteen".