5645135989 has 8 divisors (see below), whose sum is σ = 5768036640. Its totient is φ = 5523142800.

The previous prime is 5645135981. The next prime is 5645136001. The reversal of 5645135989 is 9895315465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5645135989 - 2³ = 5645135981 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 (5645135981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214282 + ... + 239179.

It is an arithmetic number, because the mean of its divisors is an integer number (721004580).

Almost surely, 2^5645135989 is an apocalyptic number.

5645135989 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5645135989 is a deficient number, since it is larger than the sum of its proper divisors (122900651).

5645135989 is a wasteful number, since it uses less digits than its factorization.

5645135989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453731.

The product of its digits is 5832000, while the sum is 55.

The square root of 5645135989 is about 75134.1200054942. The cubic root of 5645135989 is about 1780.5662454902.

The spelling of 5645135989 in words is "five billion, six hundred forty-five million, one hundred thirty-five thousand, nine hundred eighty-nine".