6854376638 has 16 divisors (see below), whose sum is σ = 10634603616. Its totient is φ = 3311132160.

The previous prime is 6854376631. The next prime is 6854376689. The reversal of 6854376638 is 8366734586.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6854376631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397331 + ... + 414222.

It is an arithmetic number, because the mean of its divisors is an integer number (664662726).

Almost surely, 2^6854376638 is an apocalyptic number.

6854376638 is a deficient number, since it is larger than the sum of its proper divisors (3780226978).

6854376638 is a wasteful number, since it uses less digits than its factorization.

6854376638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811699.

The product of its digits is 17418240, while the sum is 56.

The square root of 6854376638 is about 82791.1628013522. The cubic root of 6854376638 is about 1899.5730008132.

The spelling of 6854376638 in words is "six billion, eight hundred fifty-four million, three hundred seventy-six thousand, six hundred thirty-eight".