19875289873 has 16 divisors (see below), whose sum is σ = 20773725696. Its totient is φ = 18994187520.

The previous prime is 19875289831. The next prime is 19875289901. The reversal of 19875289873 is 37898257891.

It is a cyclic number.

It is not a de Polignac number, because 19875289873 - 2¹³ = 19875281681 is a prime.

It is a super-2 number, since 2×19875289873² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19875289799 and 19875289808.

It is not an unprimeable number, because it can be changed into a prime (19875289673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960090 + ... + 980572.

It is an arithmetic number, because the mean of its divisors is an integer number (1298357856).

Almost surely, 2^19875289873 is an apocalyptic number.

It is an amenable number.

19875289873 is a deficient number, since it is larger than the sum of its proper divisors (898435823).

19875289873 is a wasteful number, since it uses less digits than its factorization.

19875289873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20904.

The product of its digits is 60963840, while the sum is 67.

The spelling of 19875289873 in words is "nineteen billion, eight hundred seventy-five million, two hundred eighty-nine thousand, eight hundred seventy-three".