6687841042 has 16 divisors (see below), whose sum is σ = 10292093280. Its totient is φ = 3258146752.

The previous prime is 6687841007. The next prime is 6687841049. The reversal of 6687841042 is 2401487866.

It is a junction number, because it is equal to n+sod(n) for n = 6687840983 and 6687841001.

It is not an unprimeable number, because it can be changed into a prime (6687841049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237448 + ... + 264115.

It is an arithmetic number, because the mean of its divisors is an integer number (643255830).

Almost surely, 2^6687841042 is an apocalyptic number.

6687841042 is a deficient number, since it is larger than the sum of its proper divisors (3604252238).

6687841042 is a wasteful number, since it uses less digits than its factorization.

6687841042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501737.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 6687841042 is about 81779.2213340284. The cubic root of 6687841042 is about 1884.0625368973.

The spelling of 6687841042 in words is "six billion, six hundred eighty-seven million, eight hundred forty-one thousand, forty-two".