6438011690698 has 16 divisors (see below), whose sum is σ = 11036624639040. Its totient is φ = 2759139575136.

The previous prime is 6438011690689. The next prime is 6438011690699. The reversal of 6438011690698 is 8960961108346.

It is not an unprimeable number, because it can be changed into a prime (6438011690699) 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, 7401990 + ... + 8225902.

It is an arithmetic number, because the mean of its divisors is an integer number (689789039940).

Almost surely, 2^{6438011690698} is an apocalyptic number.

6438011690698 is a deficient number, since it is larger than the sum of its proper divisors (4598612948342).

6438011690698 is a wasteful number, since it uses less digits than its factorization.

6438011690698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382061.

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 6438011690698 in words is "six trillion, four hundred thirty-eight billion, eleven million, six hundred ninety thousand, six hundred ninety-eight".