6149644589 has 10 divisors (see below), whose sum is σ = 6764583150. Its totient is φ = 5590572680.

The previous prime is 6149644541. The next prime is 6149644639. The reversal of 6149644589 is 9854469416.

It can be written as a sum of positive squares in only one way, i.e., 4112656900 + 2036987689 = 64130^2 + 45133^2 .

It is not a de Polignac number, because 6149644589 - 2²⁴ = 6132867373 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 (6149664589) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 195374 + ... + 224655.

It is an arithmetic number, because the mean of its divisors is an integer number (676458315).

Almost surely, 2^6149644589 is an apocalyptic number.

It is an amenable number.

6149644589 is a deficient number, since it is larger than the sum of its proper divisors (614938561).

6149644589 is an frugal number, since it uses more digits than its factorization.

6149644589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420073 (or 420040 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The square root of 6149644589 is about 78419.6696562795. The cubic root of 6149644589 is about 1832.1035054194.

The spelling of 6149644589 in words is "six billion, one hundred forty-nine million, six hundred forty-four thousand, five hundred eighty-nine".