2067789918 has 32 divisors (see below), whose sum is σ = 4250146176. Its totient is φ = 670193568.

The previous prime is 2067789887. The next prime is 2067789937. The reversal of 2067789918 is 8199877602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620605 + ... + 623927.

It is an arithmetic number, because the mean of its divisors is an integer number (132817068).

Almost surely, 2^2067789918 is an apocalyptic number.

2067789918 is an abundant number, since it is smaller than the sum of its proper divisors (2182356258).

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

2067789918 is a wasteful number, since it uses less digits than its factorization.

2067789918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6168.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 2067789918 is about 45472.9580959937. The cubic root of 2067789918 is about 1273.9981709600.

The spelling of 2067789918 in words is "two billion, sixty-seven million, seven hundred eighty-nine thousand, nine hundred eighteen".