19827804572 has 12 divisors (see below), whose sum is σ = 35137882080. Its totient is φ = 9788409696.

The previous prime is 19827804541. The next prime is 19827804587. The reversal of 19827804572 is 27540872891.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 31372793 + ... + 31373424.

It is an arithmetic number, because the mean of its divisors is an integer number (2928156840).

Almost surely, 2^19827804572 is an apocalyptic number.

It is an amenable number.

19827804572 is a deficient number, since it is larger than the sum of its proper divisors (15310077508).

19827804572 is a wasteful number, since it uses less digits than its factorization.

19827804572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62746300 (or 62746298 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 19827804572 in words is "nineteen billion, eight hundred twenty-seven million, eight hundred four thousand, five hundred seventy-two".