6899657898 has 32 divisors (see below), whose sum is σ = 16456329216. Its totient is φ = 1885620528.

The previous prime is 6899657887. The next prime is 6899657903. The reversal of 6899657898 is 8987569986.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3570286 + ... + 3572217.

It is an arithmetic number, because the mean of its divisors is an integer number (514260288).

Almost surely, 2^6899657898 is an apocalyptic number.

6899657898 is an abundant number, since it is smaller than the sum of its proper divisors (9556671318).

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

6899657898 is a wasteful number, since it uses less digits than its factorization.

6899657898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142538.

The product of its digits is 470292480, while the sum is 75.

The square root of 6899657898 is about 83064.1793916006. The cubic root of 6899657898 is about 1903.7467983346.

The spelling of 6899657898 in words is "six billion, eight hundred ninety-nine million, six hundred fifty-seven thousand, eight hundred ninety-eight".