210852754021689 has 32 divisors (see below), whose sum is σ = 305299061222400. Its totient is φ = 129438288570240.

The previous prime is 210852754021607. The next prime is 210852754021691. The reversal of 210852754021689 is 986120457258012.

It is not a de Polignac number, because 210852754021689 - 2¹¹ = 210852754019641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210852754022689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36413097 + ... + 41804534.

It is an arithmetic number, because the mean of its divisors is an integer number (9540595663200).

Almost surely, 2^{210852754021689} is an apocalyptic number.

It is an amenable number.

210852754021689 is a deficient number, since it is larger than the sum of its proper divisors (94446307200711).

210852754021689 is an equidigital number, since it uses as much as digits as its factorization.

210852754021689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78218082 (or 78218056 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 210852754021689 in words is "two hundred ten trillion, eight hundred fifty-two billion, seven hundred fifty-four million, twenty-one thousand, six hundred eighty-nine".