210242943856 has 20 divisors (see below), whose sum is σ = 444377131704. Its totient is φ = 95564974400.

The previous prime is 210242943851. The next prime is 210242943863. The reversal of 210242943856 is 658349242012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210242943851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597280915 + ... + 597281266.

Almost surely, 2^210242943856 is an apocalyptic number.

It is an amenable number.

210242943856 is an abundant number, since it is smaller than the sum of its proper divisors (234134187848).

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

210242943856 is a wasteful number, since it uses less digits than its factorization.

210242943856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194562200 (or 1194562194 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 210242943856 in words is "two hundred ten billion, two hundred forty-two million, nine hundred forty-three thousand, eight hundred fifty-six".