19006299918 has 112 divisors (see below), whose sum is σ = 44784004896. Its totient is φ = 6035420160.

The previous prime is 19006299913. The next prime is 19006299959. The reversal of 19006299918 is 81999260091.

19006299918 is a `hidden beast` number, since 1 + 9 + 0 + 0 + 629 + 9 + 9 + 1 + 8 = 666.

It is a super-2 number, since 2×19006299918² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19006299911) 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 55 ways as a sum of consecutive naturals, for example, 9422046 + ... + 9424062.

Almost surely, 2^19006299918 is an apocalyptic number.

19006299918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19006299918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22392002448).

19006299918 is an abundant number, since it is smaller than the sum of its proper divisors (25777704978).

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

19006299918 is a wasteful number, since it uses less digits than its factorization.

19006299918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 54.

The spelling of 19006299918 in words is "nineteen billion, six million, two hundred ninety-nine thousand, nine hundred eighteen".