6719879842218 has 48 divisors (see below), whose sum is σ = 14953580722080. Its totient is φ = 2179371724128.

The previous prime is 6719879842213. The next prime is 6719879842229. The reversal of 6719879842218 is 8122489789176.

6719879842218 is a `hidden beast` number, since 6 + 7 + 198 + 7 + 9 + 8 + 422 + 1 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6719879842213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40796221 + ... + 40960607.

It is an arithmetic number, because the mean of its divisors is an integer number (311532931710).

Almost surely, 2^{6719879842218} is an apocalyptic number.

6719879842218 is an abundant number, since it is smaller than the sum of its proper divisors (8233700879862).

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

6719879842218 is a wasteful number, since it uses less digits than its factorization.

6719879842218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225811 (or 225808 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 72.

The spelling of 6719879842218 in words is "six trillion, seven hundred nineteen billion, eight hundred seventy-nine million, eight hundred forty-two thousand, two hundred eighteen".