19419780006 has 48 divisors (see below), whose sum is σ = 46209430800. Its totient is φ = 5845277760.

The previous prime is 19419779963. The next prime is 19419780019. The reversal of 19419780006 is 60008791491.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299625 + ... + 358628.

It is an arithmetic number, because the mean of its divisors is an integer number (962696475).

Almost surely, 2^19419780006 is an apocalyptic number.

19419780006 is an abundant number, since it is smaller than the sum of its proper divisors (26789650794).

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

19419780006 is a wasteful number, since it uses less digits than its factorization.

19419780006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658421 (or 658418 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 19419780006 in words is "nineteen billion, four hundred nineteen million, seven hundred eighty thousand, six".