6998131880 has 32 divisors (see below), whose sum is σ = 15769749600. Its totient is φ = 2794994496.

The previous prime is 6998131873. The next prime is 6998131883. The reversal of 6998131880 is 881318996.

It is not an unprimeable number, because it can be changed into a prime (6998131883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106382 + ... + 159101.

It is an arithmetic number, because the mean of its divisors is an integer number (492804675).

Almost surely, 2^6998131880 is an apocalyptic number.

It is an amenable number.

6998131880 is an abundant number, since it is smaller than the sum of its proper divisors (8771617720).

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

6998131880 is a wasteful number, since it uses less digits than its factorization.

6998131880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266153 (or 266149 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 6998131880 is about 83654.8377561035. The cubic root of 6998131880 is about 1912.7609969177.

The spelling of 6998131880 in words is "six billion, nine hundred ninety-eight million, one hundred thirty-one thousand, eight hundred eighty".