6815677642 has 16 divisors (see below), whose sum is σ = 10269614592. Its totient is φ = 3392493840.

The previous prime is 6815677613. The next prime is 6815677669. The reversal of 6815677642 is 2467765186.

6815677642 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 6815677642.

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, 766848 + ... + 775684.

It is an arithmetic number, because the mean of its divisors is an integer number (641850912).

Almost surely, 2^6815677642 is an apocalyptic number.

6815677642 is a deficient number, since it is larger than the sum of its proper divisors (3453936950).

6815677642 is a wasteful number, since it uses less digits than its factorization.

6815677642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10533.

The product of its digits is 3386880, while the sum is 52.

The square root of 6815677642 is about 82557.1174521010. The cubic root of 6815677642 is about 1895.9913306247.

The spelling of 6815677642 in words is "six billion, eight hundred fifteen million, six hundred seventy-seven thousand, six hundred forty-two".