19875289800 has 48 divisors (see below), whose sum is σ = 61613400240. Its totient is φ = 5300077120.

The previous prime is 19875289799. The next prime is 19875289817. The reversal of 19875289800 is 898257891.

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, 16562142 + ... + 16563341.

It is an arithmetic number, because the mean of its divisors is an integer number (1283612505).

Almost surely, 2^19875289800 is an apocalyptic number.

19875289800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19875289800 is an abundant number, since it is smaller than the sum of its proper divisors (41738110440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19875289800 is a wasteful number, since it uses less digits than its factorization.

19875289800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33125502 (or 33125493 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 57.

The spelling of 19875289800 in words is "nineteen billion, eight hundred seventy-five million, two hundred eighty-nine thousand, eight hundred".