210943389136 has 40 divisors (see below), whose sum is σ = 425208848384. Its totient is φ = 101265655680.

The previous prime is 210943389089. The next prime is 210943389187. The reversal of 210943389136 is 631983349012.

It is a super-2 number, since 2×210943389136² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210943389136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611375 + ... + 1737358.

Almost surely, 2^210943389136 is an apocalyptic number.

It is an amenable number.

210943389136 is an abundant number, since it is smaller than the sum of its proper divisors (214265459248).

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

210943389136 is a wasteful number, since it uses less digits than its factorization.

210943389136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348899 (or 3348893 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 210943389136 in words is "two hundred ten billion, nine hundred forty-three million, three hundred eighty-nine thousand, one hundred thirty-six".