2687971706 has 16 divisors (see below), whose sum is σ = 4608636480. Its totient is φ = 1151816640.

The previous prime is 2687971679. The next prime is 2687971729. The reversal of 2687971706 is 6071797862.

It is a super-3 number, since 3×2687971706³ (a number of 29 digits) contains 333 as substring.

It is a Curzon 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, 143186 + ... + 160866.

It is an arithmetic number, because the mean of its divisors is an integer number (288039780).

Almost surely, 2^2687971706 is an apocalyptic number.

2687971706 is a deficient number, since it is larger than the sum of its proper divisors (1920664774).

2687971706 is a wasteful number, since it uses less digits than its factorization.

2687971706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28549.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The square root of 2687971706 is about 51845.6527203583. The cubic root of 2687971706 is about 1390.4057794306.

The spelling of 2687971706 in words is "two billion, six hundred eighty-seven million, nine hundred seventy-one thousand, seven hundred six".