6880928991 has 4 divisors (see below), whose sum is σ = 9174571992. Its totient is φ = 4587285992.

The previous prime is 6880928969. The next prime is 6880929031. The reversal of 6880928991 is 1998290886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6880928991 - 2¹⁰ = 6880927967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6880928911) 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 3 ways as a sum of consecutive naturals, for example, 1146821496 + ... + 1146821501.

It is an arithmetic number, because the mean of its divisors is an integer number (2293642998).

Almost surely, 2^6880928991 is an apocalyptic number.

6880928991 is a deficient number, since it is larger than the sum of its proper divisors (2293643001).

6880928991 is a wasteful number, since it uses less digits than its factorization.

6880928991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293643000.

The product of its (nonzero) digits is 4478976, while the sum is 60.

The square root of 6880928991 is about 82951.3652148052. The cubic root of 6880928991 is about 1902.0226835279.

The spelling of 6880928991 in words is "six billion, eight hundred eighty million, nine hundred twenty-eight thousand, nine hundred ninety-one".