2678859506 has 16 divisors (see below), whose sum is σ = 4081309440. Its totient is φ = 1318524480.

The previous prime is 2678859487. The next prime is 2678859511. The reversal of 2678859506 is 6059588762.

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, 28091 + ... + 78401.

It is an arithmetic number, because the mean of its divisors is an integer number (255081840).

Almost surely, 2^2678859506 is an apocalyptic number.

2678859506 is a deficient number, since it is larger than the sum of its proper divisors (1402449934).

2678859506 is a wasteful number, since it uses less digits than its factorization.

2678859506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50729.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The square root of 2678859506 is about 51757.6999682173. The cubic root of 2678859506 is about 1388.8328463014.

The spelling of 2678859506 in words is "two billion, six hundred seventy-eight million, eight hundred fifty-nine thousand, five hundred six".