6694376276638 has 16 divisors (see below), whose sum is σ = 10048197219840. Its totient is φ = 3344977444896.

The previous prime is 6694376276587. The next prime is 6694376276639. The reversal of 6694376276638 is 8366726734966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694376276639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67764456 + ... + 67863172.

It is an arithmetic number, because the mean of its divisors is an integer number (628012326240).

Almost surely, 2^{6694376276638} is an apocalyptic number.

6694376276638 is a deficient number, since it is larger than the sum of its proper divisors (3353820943202).

6694376276638 is a wasteful number, since it uses less digits than its factorization.

6694376276638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120771.

The product of its digits is 1975228416, while the sum is 73.

The spelling of 6694376276638 in words is "six trillion, six hundred ninety-four billion, three hundred seventy-six million, two hundred seventy-six thousand, six hundred thirty-eight".