210509008872 has 32 divisors (see below), whose sum is σ = 527953922880. Its totient is φ = 69945482880.

The previous prime is 210509008867. The next prime is 210509008873. The reversal of 210509008872 is 278800905012.

210509008872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (210509008873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14004004 + ... + 14019027.

It is an arithmetic number, because the mean of its divisors is an integer number (16498560090).

Almost surely, 2^210509008872 is an apocalyptic number.

It is an amenable number.

210509008872 is an abundant number, since it is smaller than the sum of its proper divisors (317444914008).

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

210509008872 is a wasteful number, since it uses less digits than its factorization.

210509008872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28023353 (or 28023349 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 210509008872 in words is "two hundred ten billion, five hundred nine million, eight thousand, eight hundred seventy-two".