210440340210018 has 16 divisors (see below), whose sum is σ = 420966242723520. Its totient is φ = 70132519686096.

The previous prime is 210440340210017. The next prime is 210440340210053. The reversal of 210440340210018 is 810012043044012.

It is not an unprimeable number, because it can be changed into a prime (210440340210011) 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, 3565064005 + ... + 3565123032.

It is an arithmetic number, because the mean of its divisors is an integer number (26310390170220).

Almost surely, 2^{210440340210018} is an apocalyptic number.

210440340210018 is an abundant number, since it is smaller than the sum of its proper divisors (210525902513502).

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

210440340210018 is a wasteful number, since it uses less digits than its factorization.

210440340210018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130191961.

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 210440340210018 in words is "two hundred ten trillion, four hundred forty billion, three hundred forty million, two hundred ten thousand, eighteen".