19246420218 has 16 divisors (see below), whose sum is σ = 38694375936. Its totient is φ = 6381884160.

The previous prime is 19246420199. The next prime is 19246420231. The reversal of 19246420218 is 81202464291.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8396071 + ... + 8398362.

It is an arithmetic number, because the mean of its divisors is an integer number (2418398496).

Almost surely, 2^19246420218 is an apocalyptic number.

19246420218 is an abundant number, since it is smaller than the sum of its proper divisors (19447955718).

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

19246420218 is a wasteful number, since it uses less digits than its factorization.

19246420218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16794629.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 19246420218 in words is "nineteen billion, two hundred forty-six million, four hundred twenty thousand, two hundred eighteen".