6898895648 has 18 divisors (see below), whose sum is σ = 13583125899. Its totient is φ = 3449212896.

The previous prime is 6898895639. The next prime is 6898895669. The reversal of 6898895648 is 8465988986.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 3449447824 + 3449447824 = 58732^2 + 58732^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=58732.

It is a super-2 number, since 2×6898895648² = 95189522323986679808, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 462515 + ... + 477197.

Almost surely, 2^6898895648 is an apocalyptic number.

It is an amenable number.

6898895648 is a deficient number, since it is larger than the sum of its proper divisors (6684230251).

6898895648 is an frugal number, since it uses more digits than its factorization.

6898895648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29376 (or 14685 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 71.

The square root of 6898895648 is about 83059.5909452966. The cubic root of 6898895648 is about 1903.6766893301.

The spelling of 6898895648 in words is "six billion, eight hundred ninety-eight million, eight hundred ninety-five thousand, six hundred forty-eight".