2788579666 has 32 divisors (see below), whose sum is σ = 4556424960. Its totient is φ = 1274616576.

The previous prime is 2788579657. The next prime is 2788579693. The reversal of 2788579666 is 6669758872.

It is a junction number, because it is equal to n+sod(n) for n = 2788579598 and 2788579607.

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, 902961 + ... + 906043.

It is an arithmetic number, because the mean of its divisors is an integer number (142388280).

Almost surely, 2^2788579666 is an apocalyptic number.

2788579666 is a deficient number, since it is larger than the sum of its proper divisors (1767845294).

2788579666 is a wasteful number, since it uses less digits than its factorization.

2788579666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858.

The product of its digits is 60963840, while the sum is 64.

The square root of 2788579666 is about 52807.0039483400. The cubic root of 2788579666 is about 1407.5408851030.

The spelling of 2788579666 in words is "two billion, seven hundred eighty-eight million, five hundred seventy-nine thousand, six hundred sixty-six".