6899968280 has 16 divisors (see below), whose sum is σ = 15524928720. Its totient is φ = 2759987296.

The previous prime is 6899968261. The next prime is 6899968303. The reversal of 6899968280 is 828699986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86249564 + ... + 86249643.

It is an arithmetic number, because the mean of its divisors is an integer number (970308045).

Almost surely, 2^6899968280 is an apocalyptic number.

It is an amenable number.

6899968280 is an abundant number, since it is smaller than the sum of its proper divisors (8624960440).

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

6899968280 is a wasteful number, since it uses less digits than its factorization.

6899968280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172499218 (or 172499214 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 65.

The square root of 6899968280 is about 83066.0476969983. The cubic root of 6899968280 is about 1903.7753446716.

The spelling of 6899968280 in words is "six billion, eight hundred ninety-nine million, nine hundred sixty-eight thousand, two hundred eighty".