19688753125 has 24 divisors (see below), whose sum is σ = 24636673152. Its totient is φ = 15733530000.

The previous prime is 19688753101. The next prime is 19688753141. The reversal of 19688753125 is 52135788691.

It is not a de Polignac number, because 19688753125 - 2⁵ = 19688753093 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 3318912 + ... + 3324838.

It is an arithmetic number, because the mean of its divisors is an integer number (1026528048).

Almost surely, 2^19688753125 is an apocalyptic number.

It is an amenable number.

19688753125 is a deficient number, since it is larger than the sum of its proper divisors (4947920027).

19688753125 is an frugal number, since it uses more digits than its factorization.

19688753125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7015 (or 6995 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 55.

The spelling of 19688753125 in words is "nineteen billion, six hundred eighty-eight million, seven hundred fifty-three thousand, one hundred twenty-five".