2678794858 has 8 divisors (see below), whose sum is σ = 4018782852. Its totient is φ = 1339200576.

The previous prime is 2678794829. The next prime is 2678795011. The reversal of 2678794858 is 8584978762.

It can be written as a sum of positive squares in 2 ways, for example, as 2672579809 + 6215049 = 51697^2 + 2493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2678794858.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80785 + ... + 109012.

Almost surely, 2^2678794858 is an apocalyptic number.

2678794858 is a deficient number, since it is larger than the sum of its proper divisors (1339987994).

2678794858 is a wasteful number, since it uses less digits than its factorization.

2678794858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196856.

The product of its digits is 54190080, while the sum is 64.

The square root of 2678794858 is about 51757.0754390161. The cubic root of 2678794858 is about 1388.8216741355.

The spelling of 2678794858 in words is "two billion, six hundred seventy-eight million, seven hundred ninety-four thousand, eight hundred fifty-eight".