5281679897 has 16 divisors (see below), whose sum is σ = 5889786000. Its totient is φ = 4702731264.

The previous prime is 5281679873. The next prime is 5281679899. The reversal of 5281679897 is 7989761825.

It can be written as a sum of positive squares in 8 ways, for example, as 2391112201 + 2890567696 = 48899^2 + 53764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5281679897 - 2²⁴ = 5264902681 is a prime.

It is a super-2 number, since 2×5281679897² = 55792285068747861218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5281679899) 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 15 ways as a sum of consecutive naturals, for example, 419429 + ... + 431837.

It is an arithmetic number, because the mean of its divisors is an integer number (368111625).

Almost surely, 2^5281679897 is an apocalyptic number.

It is an amenable number.

5281679897 is a deficient number, since it is larger than the sum of its proper divisors (608106103).

5281679897 is a wasteful number, since it uses less digits than its factorization.

5281679897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13580.

The product of its digits is 15240960, while the sum is 62.

The square root of 5281679897 is about 72675.1669898322. The cubic root of 5281679897 is about 1741.5021925232.

The spelling of 5281679897 in words is "five billion, two hundred eighty-one million, six hundred seventy-nine thousand, eight hundred ninety-seven".