5398145989 has 4 divisors (see below), whose sum is σ = 5398436160. Its totient is φ = 5397855820.

The previous prime is 5398145959. The next prime is 5398145999. The reversal of 5398145989 is 9895418935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5398145989 - 2⁷ = 5398145861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5398145959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115117 + ... + 155074.

It is an arithmetic number, because the mean of its divisors is an integer number (1349609040).

Almost surely, 2^5398145989 is an apocalyptic number.

It is an amenable number.

5398145989 is a deficient number, since it is larger than the sum of its proper divisors (290171).

5398145989 is a wasteful number, since it uses less digits than its factorization.

5398145989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290170.

The product of its digits is 13996800, while the sum is 61.

The square root of 5398145989 is about 73472.0762534992. The cubic root of 5398145989 is about 1754.2098362020.

The spelling of 5398145989 in words is "five billion, three hundred ninety-eight million, one hundred forty-five thousand, nine hundred eighty-nine".