6489365369 has 4 divisors (see below), whose sum is σ = 6491078244. Its totient is φ = 6487652496.

The previous prime is 6489365353. The next prime is 6489365381. The reversal of 6489365369 is 9635639846.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2108646400 + 4380718969 = 45920^2 + 66187^2 .

It is a cyclic number.

It is not a de Polignac number, because 6489365369 - 2⁴ = 6489365353 is a prime.

It is a super-2 number, since 2×6489365369² = 84223725784753012322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6489361369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850742 + ... + 858335.

It is an arithmetic number, because the mean of its divisors is an integer number (1622769561).

Almost surely, 2^6489365369 is an apocalyptic number.

It is an amenable number.

6489365369 is a deficient number, since it is larger than the sum of its proper divisors (1712875).

6489365369 is a wasteful number, since it uses less digits than its factorization.

6489365369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712874.

The product of its digits is 25194240, while the sum is 59.

The square root of 6489365369 is about 80556.5973027660. The cubic root of 6489365369 is about 1865.2372310693.

The spelling of 6489365369 in words is "six billion, four hundred eighty-nine million, three hundred sixty-five thousand, three hundred sixty-nine".