2489669251 has 8 divisors (see below), whose sum is σ = 2501452800. Its totient is φ = 2477901000.

The previous prime is 2489669219. The next prime is 2489669257. The reversal of 2489669251 is 1529669842.

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 2489669251 - 2⁵ = 2489669219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2489669257) 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, 438690 + ... + 444328.

It is an arithmetic number, because the mean of its divisors is an integer number (312681600).

Almost surely, 2^2489669251 is an apocalyptic number.

2489669251 is a deficient number, since it is larger than the sum of its proper divisors (11783549).

2489669251 is a wasteful number, since it uses less digits than its factorization.

2489669251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7649.

The product of its digits is 1866240, while the sum is 52.

The square root of 2489669251 is about 49896.5855645454. The cubic root of 2489669251 is about 1355.3367628352.

The spelling of 2489669251 in words is "two billion, four hundred eighty-nine million, six hundred sixty-nine thousand, two hundred fifty-one".