210685348491312 has 160 divisors (see below), whose sum is σ = 550812328754688. Its totient is φ = 69387604144128.

The previous prime is 210685348491307. The next prime is 210685348491367. The reversal of 210685348491312 is 213194843586012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5080774803 + ... + 5080816269.

Almost surely, 2^{210685348491312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210685348491312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275406164377344).

210685348491312 is an abundant number, since it is smaller than the sum of its proper divisors (340126980263376).

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

210685348491312 is a wasteful number, since it uses less digits than its factorization.

210685348491312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43907 (or 43901 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 210685348491312 in words is "two hundred ten trillion, six hundred eighty-five billion, three hundred forty-eight million, four hundred ninety-one thousand, three hundred twelve".