210678985201 has 8 divisors (see below), whose sum is σ = 213055884360. Its totient is φ = 208302302208.

The previous prime is 210678985159. The next prime is 210678985291. The reversal of 210678985201 is 102589876012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4155091600 + 206523893601 = 64460^2 + 454449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210678985201 - 2¹¹ = 210678983153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210678985291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2682645 + ... + 2760061.

It is an arithmetic number, because the mean of its divisors is an integer number (26631985545).

Almost surely, 2^210678985201 is an apocalyptic number.

It is an amenable number.

210678985201 is a deficient number, since it is larger than the sum of its proper divisors (2376899159).

210678985201 is an equidigital number, since it uses as much as digits as its factorization.

210678985201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108083.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 210678985201 in words is "two hundred ten billion, six hundred seventy-eight million, nine hundred eighty-five thousand, two hundred one".