6816577042 has 32 divisors (see below), whose sum is σ = 11532400128. Its totient is φ = 2993760000.

The previous prime is 6816577003. The next prime is 6816577051. The reversal of 6816577042 is 2407756186.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6816576983 and 6816577001.

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, 443242 + ... + 458362.

It is an arithmetic number, because the mean of its divisors is an integer number (360387504).

Almost surely, 2^6816577042 is an apocalyptic number.

6816577042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6816577042 is a deficient number, since it is larger than the sum of its proper divisors (4715823086).

6816577042 is a wasteful number, since it uses less digits than its factorization.

6816577042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 6816577042 is about 82562.5644102701. The cubic root of 6816577042 is about 1896.0747255899.

The spelling of 6816577042 in words is "six billion, eight hundred sixteen million, five hundred seventy-seven thousand, forty-two".