6898999545 has 12 divisors (see below), whose sum is σ = 11958265956. Its totient is φ = 3679466400.

The previous prime is 6898999531. The next prime is 6898999553. The reversal of 6898999545 is 5459998986.

6898999545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 747420921 + 6151578624 = 27339^2 + 78432^2 .

It is not a de Polignac number, because 6898999545 - 2⁴ = 6898999529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76655506 + ... + 76655595.

It is an arithmetic number, because the mean of its divisors is an integer number (996522163).

Almost surely, 2^6898999545 is an apocalyptic number.

It is an amenable number.

6898999545 is a deficient number, since it is larger than the sum of its proper divisors (5059266411).

6898999545 is a wasteful number, since it uses less digits than its factorization.

6898999545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153311112 (or 153311109 counting only the distinct ones).

The product of its digits is 251942400, while the sum is 72.

The square root of 6898999545 is about 83060.2163794437. The cubic root of 6898999545 is about 1903.6862457052.

The spelling of 6898999545 in words is "six billion, eight hundred ninety-eight million, nine hundred ninety-nine thousand, five hundred forty-five".