2644601489 has 8 divisors (see below), whose sum is σ = 2669684832. Its totient is φ = 2619547840.

The previous prime is 2644601483. The next prime is 2644601513. The reversal of 2644601489 is 9841064462.

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 2644601489 - 2¹⁶ = 2644535953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2644601483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198182 + ... + 211104.

It is an arithmetic number, because the mean of its divisors is an integer number (333710604).

Almost surely, 2^2644601489 is an apocalyptic number.

It is an amenable number.

2644601489 is a deficient number, since it is larger than the sum of its proper divisors (25083343).

2644601489 is a wasteful number, since it uses less digits than its factorization.

2644601489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14847.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 2644601489 is about 51425.6889987874. The cubic root of 2644601489 is about 1382.8871656915.

The spelling of 2644601489 in words is "two billion, six hundred forty-four million, six hundred one thousand, four hundred eighty-nine".