19027209804 has 12 divisors (see below), whose sum is σ = 44396822904. Its totient is φ = 6342403264.

The previous prime is 19027209769. The next prime is 19027209811. The reversal of 19027209804 is 40890272091.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792800397 + ... + 792800420.

It is an arithmetic number, because the mean of its divisors is an integer number (3699735242).

Almost surely, 2^19027209804 is an apocalyptic number.

It is an amenable number.

19027209804 is an abundant number, since it is smaller than the sum of its proper divisors (25369613100).

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

19027209804 is a wasteful number, since it uses less digits than its factorization.

19027209804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585600824 (or 1585600822 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 19027209804 in words is "nineteen billion, twenty-seven million, two hundred nine thousand, eight hundred four".