2856214978 has 8 divisors (see below), whose sum is σ = 4291933968. Its totient is φ = 1425570324.

The previous prime is 2856214969. The next prime is 2856215023. The reversal of 2856214978 is 8794126582.

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

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, 1267176 + ... + 1269427.

It is an arithmetic number, because the mean of its divisors is an integer number (536491746).

Almost surely, 2^2856214978 is an apocalyptic number.

2856214978 is a deficient number, since it is larger than the sum of its proper divisors (1435718990).

2856214978 is a wasteful number, since it uses less digits than its factorization.

2856214978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537168.

The product of its digits is 1935360, while the sum is 52.

The square root of 2856214978 is about 53443.5681630634. The cubic root of 2856214978 is about 1418.8297867425.

The spelling of 2856214978 in words is "two billion, eight hundred fifty-six million, two hundred fourteen thousand, nine hundred seventy-eight".