6889668438040 has 32 divisors (see below), whose sum is σ = 15620087997360. Its totient is φ = 2734830217600.

The previous prime is 6889668438013. The next prime is 6889668438053. The reversal of 6889668438040 is 408348669886.

It is a super-2 number, since 2×6889668438040² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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, 657405871 + ... + 657416350.

Almost surely, 2^{6889668438040} is an apocalyptic number.

It is an amenable number.

6889668438040 is an abundant number, since it is smaller than the sum of its proper divisors (8730419559320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6889668438040 is a wasteful number, since it uses less digits than its factorization.

6889668438040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314822363 (or 1314822359 counting only the distinct ones).

The product of its (nonzero) digits is 382205952, while the sum is 70.

The spelling of 6889668438040 in words is "six trillion, eight hundred eighty-nine billion, six hundred sixty-eight million, four hundred thirty-eight thousand, forty".