6855182978 has 32 divisors (see below), whose sum is σ = 12095032320. Its totient is φ = 2853314640.

The previous prime is 6855182953. The next prime is 6855183031. The reversal of 6855182978 is 8792815586.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18563 + ... + 118553.

It is an arithmetic number, because the mean of its divisors is an integer number (377969760).

Almost surely, 2^6855182978 is an apocalyptic number.

6855182978 is a deficient number, since it is larger than the sum of its proper divisors (5239849342).

6855182978 is a wasteful number, since it uses less digits than its factorization.

6855182978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100142.

The product of its digits is 9676800, while the sum is 59.

The square root of 6855182978 is about 82796.0323807850. The cubic root of 6855182978 is about 1899.6474856626.

The spelling of 6855182978 in words is "six billion, eight hundred fifty-five million, one hundred eighty-two thousand, nine hundred seventy-eight".