19673212828 has 12 divisors (see below), whose sum is σ = 34429123512. Its totient is φ = 9836320400.

The previous prime is 19673212813. The next prime is 19673212837. The reversal of 19673212828 is 82821237691.

It is a congruent number.

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, 187503 + ... + 272953.

It is an arithmetic number, because the mean of its divisors is an integer number (2869093626).

Almost surely, 2^19673212828 is an apocalyptic number.

It is an amenable number.

19673212828 is a deficient number, since it is larger than the sum of its proper divisors (14755910684).

19673212828 is a wasteful number, since it uses less digits than its factorization.

19673212828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143012 (or 143010 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The spelling of 19673212828 in words is "nineteen billion, six hundred seventy-three million, two hundred twelve thousand, eight hundred twenty-eight".