5398679889 has 20 divisors (see below), whose sum is σ = 8196910260. Its totient is φ = 3540114720.

The previous prime is 5398679873. The next prime is 5398679911. The reversal of 5398679889 is 9889768935.

5398679889 is a `hidden beast` number, since 539 + 8 + 6 + 7 + 9 + 8 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 596189889 + 4802490000 = 24417^2 + 69300^2 .

It is not a de Polignac number, because 5398679889 - 2⁴ = 5398679873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5398679089) 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 19 ways as a sum of consecutive naturals, for example, 541374 + ... + 551255.

It is an arithmetic number, because the mean of its divisors is an integer number (409845513).

Almost surely, 2^5398679889 is an apocalyptic number.

It is an amenable number.

5398679889 is a deficient number, since it is larger than the sum of its proper divisors (2798230371).

5398679889 is a wasteful number, since it uses less digits than its factorization.

5398679889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092702 (or 1092693 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 72.

The square root of 5398679889 is about 73475.7095168192. The cubic root of 5398679889 is about 1754.2676672770.

The spelling of 5398679889 in words is "five billion, three hundred ninety-eight million, six hundred seventy-nine thousand, eight hundred eighty-nine".