4887489251 has 4 divisors (see below), whose sum is σ = 4991478432. Its totient is φ = 4783500072.

The previous prime is 4887489247. The next prime is 4887489253. The reversal of 4887489251 is 1529847884.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4887489251 - 2² = 4887489247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4887489253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51994520 + ... + 51994613.

It is an arithmetic number, because the mean of its divisors is an integer number (1247869608).

Almost surely, 2^4887489251 is an apocalyptic number.

4887489251 is a deficient number, since it is larger than the sum of its proper divisors (103989181).

4887489251 is a wasteful number, since it uses less digits than its factorization.

4887489251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103989180.

The product of its digits is 5160960, while the sum is 56.

The square root of 4887489251 is about 69910.5803938145. The cubic root of 4887489251 is about 1697.0524761631.

The spelling of 4887489251 in words is "four billion, eight hundred eighty-seven million, four hundred eighty-nine thousand, two hundred fifty-one".