19281066078 has 16 divisors (see below), whose sum is σ = 39604352400. Its totient is φ = 6253318656.

The previous prime is 19281066019. The next prime is 19281066131. The reversal of 19281066078 is 87066018291.

It is a congruent 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, 43425603 + ... + 43426046.

It is an arithmetic number, because the mean of its divisors is an integer number (2475272025).

Almost surely, 2^19281066078 is an apocalyptic number.

19281066078 is an abundant number, since it is smaller than the sum of its proper divisors (20323286322).

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

19281066078 is a wasteful number, since it uses less digits than its factorization.

19281066078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86851691.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 19281066078 in words is "nineteen billion, two hundred eighty-one million, sixty-six thousand, seventy-eight".