19073632809 has 192 divisors, whose sum is σ = 35668684800. Its totient is φ = 8831877120.

The previous prime is 19073632801. The next prime is 19073632811. The reversal of 19073632809 is 90823637091.

It is not a de Polignac number, because 19073632809 - 2³ = 19073632801 is a prime.

It is a super-2 number, since 2×19073632809² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19073632801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 98827017 + ... + 98827209.

It is an arithmetic number, because the mean of its divisors is an integer number (185774400).

Almost surely, 2^19073632809 is an apocalyptic number.

19073632809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19073632809 is a deficient number, since it is larger than the sum of its proper divisors (16595051991).

19073632809 is a wasteful number, since it uses less digits than its factorization.

19073632809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 19073632809 in words is "nineteen billion, seventy-three million, six hundred thirty-two thousand, eight hundred nine".