6810387745842 has 48 divisors (see below), whose sum is σ = 15041208416832. Its totient is φ = 2226646557600.

The previous prime is 6810387745771. The next prime is 6810387745873. The reversal of 6810387745842 is 2485477830186.

It is a happy number.

6810387745842 is a `hidden beast` number, since 6 + 8 + 10 + 38 + 7 + 7 + 4 + 584 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6810387745842.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17310558 + ... + 17699609.

It is an arithmetic number, because the mean of its divisors is an integer number (313358508684).

Almost surely, 2^{6810387745842} is an apocalyptic number.

6810387745842 is an abundant number, since it is smaller than the sum of its proper divisors (8230820670990).

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

6810387745842 is a wasteful number, since it uses less digits than its factorization.

6810387745842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35010383 (or 35010380 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 63.

The spelling of 6810387745842 in words is "six trillion, eight hundred ten billion, three hundred eighty-seven million, seven hundred forty-five thousand, eight hundred forty-two".