6918856705 has 8 divisors (see below), whose sum is σ = 8320563072. Its totient is φ = 5523128688.

The previous prime is 6918856697. The next prime is 6918856717. The reversal of 6918856705 is 5076588196.

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

It is a cyclic number.

It is not a de Polignac number, because 6918856705 - 2³ = 6918856697 is a prime.

It is a Duffinian 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, 1492039 + ... + 1496668.

It is an arithmetic number, because the mean of its divisors is an integer number (1040070384).

Almost surely, 2^6918856705 is an apocalyptic number.

It is an amenable number.

6918856705 is a deficient number, since it is larger than the sum of its proper divisors (1401706367).

6918856705 is a wasteful number, since it uses less digits than its factorization.

6918856705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989175.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 6918856705 is about 83179.6652133200. The cubic root of 6918856705 is about 1905.5109350252.

The spelling of 6918856705 in words is "six billion, nine hundred eighteen million, eight hundred fifty-six thousand, seven hundred five".