210247289950 has 24 divisors (see below), whose sum is σ = 404544788280. Its totient is φ = 81198952800.

The previous prime is 210247289939. The next prime is 210247289971. The reversal of 210247289950 is 59982742012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210247289894 and 210247289903.

It is a congruent number.

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, 72497616 + ... + 72500515.

It is an arithmetic number, because the mean of its divisors is an integer number (16856032845).

Almost surely, 2^210247289950 is an apocalyptic number.

210247289950 is a deficient number, since it is larger than the sum of its proper divisors (194297498330).

210247289950 is a wasteful number, since it uses less digits than its factorization.

210247289950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144998172 (or 144998167 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 210247289950 in words is "two hundred ten billion, two hundred forty-seven million, two hundred eighty-nine thousand, nine hundred fifty".