19875289874 has 24 divisors (see below), whose sum is σ = 34194363840. Its totient is φ = 8641427960.

The previous prime is 19875289831. The next prime is 19875289901. The reversal of 19875289874 is 47898257891.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1779854 + ... + 1790985.

It is an arithmetic number, because the mean of its divisors is an integer number (1424765160).

Almost surely, 2^19875289874 is an apocalyptic number.

19875289874 is a deficient number, since it is larger than the sum of its proper divisors (14319073966).

19875289874 is a wasteful number, since it uses less digits than its factorization.

19875289874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570886 (or 3570875 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 68.

The spelling of 19875289874 in words is "nineteen billion, eight hundred seventy-five million, two hundred eighty-nine thousand, eight hundred seventy-four".