19285018794 has 24 divisors (see below), whose sum is σ = 43600912992. Its totient is φ = 6148846440.

The previous prime is 19285018769. The next prime is 19285018859. The reversal of 19285018794 is 49781058291.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19285018794.

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 11 ways as a sum of consecutive naturals, for example, 23290672 + ... + 23291499.

It is an arithmetic number, because the mean of its divisors is an integer number (1816704708).

Almost surely, 2^19285018794 is an apocalyptic number.

19285018794 is an abundant number, since it is smaller than the sum of its proper divisors (24315894198).

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

19285018794 is a wasteful number, since it uses less digits than its factorization.

19285018794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46582202 (or 46582199 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 19285018794 in words is "nineteen billion, two hundred eighty-five million, eighteen thousand, seven hundred ninety-four".