6880031721 has 12 divisors (see below), whose sum is σ = 9953191872. Its totient is φ = 4579594776.

The previous prime is 6880031701. The next prime is 6880031731. The reversal of 6880031721 is 1271300886.

It is not a de Polignac number, because 6880031721 - 2¹⁰ = 6880030697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6880031701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584941 + ... + 596586.

It is an arithmetic number, because the mean of its divisors is an integer number (829432656).

Almost surely, 2^6880031721 is an apocalyptic number.

It is an amenable number.

6880031721 is a deficient number, since it is larger than the sum of its proper divisors (3073160151).

6880031721 is a wasteful number, since it uses less digits than its factorization.

6880031721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182180 (or 1182177 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 6880031721 is about 82945.9566283975. The cubic root of 6880031721 is about 1901.9400056375.

The spelling of 6880031721 in words is "six billion, eight hundred eighty million, thirty-one thousand, seven hundred twenty-one".