6828609381 has 64 divisors (see below), whose sum is σ = 10493107200. Its totient is φ = 3911846400.

The previous prime is 6828609379. The next prime is 6828609391. The reversal of 6828609381 is 1839068286.

It is not a de Polignac number, because 6828609381 - 2¹ = 6828609379 is a prime.

It is a super-2 number, since 2×6828609381² = 93259812156562406322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6828609341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18017250 + ... + 18017628.

It is an arithmetic number, because the mean of its divisors is an integer number (163954800).

Almost surely, 2^6828609381 is an apocalyptic number.

It is an amenable number.

6828609381 is a deficient number, since it is larger than the sum of its proper divisors (3664497819).

6828609381 is a wasteful number, since it uses less digits than its factorization.

6828609381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 6828609381 is about 82635.4002894643. The cubic root of 6828609381 is about 1897.1896939632.

The spelling of 6828609381 in words is "six billion, eight hundred twenty-eight million, six hundred nine thousand, three hundred eighty-one".