2666048694879 has 16 divisors (see below), whose sum is σ = 3610933603200. Its totient is φ = 1749424005216.

The previous prime is 2666048694863. The next prime is 2666048694887. The reversal of 2666048694879 is 9784968406662.

It is not a de Polignac number, because 2666048694879 - 2⁴ = 2666048694863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2666048694879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666048694809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19834549 + ... + 19968510.

It is an arithmetic number, because the mean of its divisors is an integer number (225683350200).

Almost surely, 2^{2666048694879} is an apocalyptic number.

2666048694879 is a deficient number, since it is larger than the sum of its proper divisors (944884908321).

2666048694879 is a wasteful number, since it uses less digits than its factorization.

2666048694879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39803414.

The product of its (nonzero) digits is 1504935936, while the sum is 75.

The spelling of 2666048694879 in words is "two trillion, six hundred sixty-six billion, forty-eight million, six hundred ninety-four thousand, eight hundred seventy-nine".