2666439067 has 8 divisors (see below), whose sum is σ = 2691999072. Its totient is φ = 2640993600.

The previous prime is 2666439031. The next prime is 2666439089. The reversal of 2666439067 is 7609346662.

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 2666439067 - 2³¹ = 518955419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2666439067.

It is not an unprimeable number, because it can be changed into a prime (2666439367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18517 + ... + 75337.

It is an arithmetic number, because the mean of its divisors is an integer number (336499884).

Almost surely, 2^2666439067 is an apocalyptic number.

2666439067 is a deficient number, since it is larger than the sum of its proper divisors (25560005).

2666439067 is a wasteful number, since it uses less digits than its factorization.

2666439067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57269.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The square root of 2666439067 is about 51637.5741781118. The cubic root of 2666439067 is about 1386.6830953801.

The spelling of 2666439067 in words is "two billion, six hundred sixty-six million, four hundred thirty-nine thousand, sixty-seven".