6881937663 has 8 divisors (see below), whose sum is σ = 9574869888. Its totient is φ = 4388481944.

The previous prime is 6881937653. The next prime is 6881937679. The reversal of 6881937663 is 3667391886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6881937663 - 2⁸ = 6881937407 is a prime.

It is a super-2 number, since 2×6881937663² = 94722131994835803138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881937653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49869045 + ... + 49869182.

It is an arithmetic number, because the mean of its divisors is an integer number (1196858736).

Almost surely, 2^6881937663 is an apocalyptic number.

6881937663 is a deficient number, since it is larger than the sum of its proper divisors (2692932225).

6881937663 is a wasteful number, since it uses less digits than its factorization.

6881937663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99738253.

The product of its digits is 7838208, while the sum is 57.

The square root of 6881937663 is about 82957.4448919444. Note that the first 3 decimals coincide. The cubic root of 6881937663 is about 1902.1156178439.

The spelling of 6881937663 in words is "six billion, eight hundred eighty-one million, nine hundred thirty-seven thousand, six hundred sixty-three".