19899882825903 has 12 divisors (see below), whose sum is σ = 28747599495888. Its totient is φ = 13265054256960.

The previous prime is 19899882825899. The next prime is 19899882825913. The reversal of 19899882825903 is 30952828899891.

It is a happy number.

19899882825903 is a `hidden beast` number, since 1 + 98 + 99 + 88 + 282 + 5 + 90 + 3 = 666.

It is not a de Polignac number, because 19899882825903 - 2² = 19899882825899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19899882825913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127775658 + ... + 127931303.

It is an arithmetic number, because the mean of its divisors is an integer number (2395633291324).

Almost surely, 2^{19899882825903} is an apocalyptic number.

19899882825903 is a deficient number, since it is larger than the sum of its proper divisors (8847716669985).

19899882825903 is a wasteful number, since it uses less digits than its factorization.

19899882825903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255715614 (or 255715611 counting only the distinct ones).

The product of its (nonzero) digits is 1612431360, while the sum is 81.

The spelling of 19899882825903 in words is "nineteen trillion, eight hundred ninety-nine billion, eight hundred eighty-two million, eight hundred twenty-five thousand, nine hundred three".