2489865773 has 8 divisors (see below), whose sum is σ = 2625952320. Its totient is φ = 2354283360.

The previous prime is 2489865767. The next prime is 2489865793. The reversal of 2489865773 is 3775689842.

It is a happy number.

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 2489865773 - 2⁴ = 2489865757 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 (2489865793) 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, 115865 + ... + 135662.

It is an arithmetic number, because the mean of its divisors is an integer number (328244040).

Almost surely, 2^2489865773 is an apocalyptic number.

It is an amenable number.

2489865773 is a deficient number, since it is larger than the sum of its proper divisors (136086547).

2489865773 is a wasteful number, since it uses less digits than its factorization.

2489865773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252067.

The product of its digits is 20321280, while the sum is 59.

The square root of 2489865773 is about 49898.5548187520. The cubic root of 2489865773 is about 1355.3724230584.

The spelling of 2489865773 in words is "two billion, four hundred eighty-nine million, eight hundred sixty-five thousand, seven hundred seventy-three".