19648895885 has 32 divisors (see below), whose sum is σ = 26295114240. Its totient is φ = 14007555072.

The previous prime is 19648895839. The next prime is 19648895891. The reversal of 19648895885 is 58859884691.

It is a cyclic number.

It is not a de Polignac number, because 19648895885 - 2⁶ = 19648895821 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 4466507 + ... + 4470903.

It is an arithmetic number, because the mean of its divisors is an integer number (821722320).

Almost surely, 2^19648895885 is an apocalyptic number.

It is an amenable number.

19648895885 is a deficient number, since it is larger than the sum of its proper divisors (6646218355).

19648895885 is a wasteful number, since it uses less digits than its factorization.

19648895885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205.

The product of its digits is 199065600, while the sum is 71.

The spelling of 19648895885 in words is "nineteen billion, six hundred forty-eight million, eight hundred ninety-five thousand, eight hundred eighty-five".