2666973886 has 16 divisors (see below), whose sum is σ = 4086482400. Its totient is φ = 1304943328.

The previous prime is 2666973871. The next prime is 2666973899. The reversal of 2666973886 is 6883796662.

It is a super-2 number, since 2×2666973886² = 14225499417211881992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8895 + ... + 73573.

It is an arithmetic number, because the mean of its divisors is an integer number (255405150).

Almost surely, 2^2666973886 is an apocalyptic number.

2666973886 is a deficient number, since it is larger than the sum of its proper divisors (1419508514).

2666973886 is a wasteful number, since it uses less digits than its factorization.

2666973886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65123.

The product of its digits is 31352832, while the sum is 61.

The square root of 2666973886 is about 51642.7525021663. The cubic root of 2666973886 is about 1386.7758001535.

The spelling of 2666973886 in words is "two billion, six hundred sixty-six million, nine hundred seventy-three thousand, eight hundred eighty-six".