6770831638 has 16 divisors (see below), whose sum is σ = 10765900080. Its totient is φ = 3182651136.

The previous prime is 6770831623. The next prime is 6770831647. The reversal of 6770831638 is 8361380776.

It is a super-2 number, since 2×6770831638² = 91688322140283526088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6770831591 and 6770831600.

It is a congruent 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, 82743 + ... + 142786.

It is an arithmetic number, because the mean of its divisors is an integer number (672868755).

Almost surely, 2^6770831638 is an apocalyptic number.

6770831638 is a deficient number, since it is larger than the sum of its proper divisors (3995068442).

6770831638 is a wasteful number, since it uses less digits than its factorization.

6770831638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226431.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 6770831638 is about 82285.0632739624. The cubic root of 6770831638 is about 1891.8237426447.

The spelling of 6770831638 in words is "six billion, seven hundred seventy million, eight hundred thirty-one thousand, six hundred thirty-eight".