4489468857 has 6 divisors (see below), whose sum is σ = 6484788362. Its totient is φ = 2992979232.

The previous prime is 4489468847. The next prime is 4489468861. The reversal of 4489468857 is 7588649844.

4489468857 is a `hidden beast` number, since 44 + 89 + 468 + 8 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2782457001 + 1707011856 = 52749^2 + 41316^2 .

It is not a de Polignac number, because 4489468857 - 2⁷ = 4489468729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4489468794 and 4489468803.

It is not an unprimeable number, because it can be changed into a prime (4489468847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249414928 + ... + 249414945.

Almost surely, 2^4489468857 is an apocalyptic number.

It is an amenable number.

4489468857 is a deficient number, since it is larger than the sum of its proper divisors (1995319505).

4489468857 is a wasteful number, since it uses less digits than its factorization.

4489468857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498829879 (or 498829876 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The square root of 4489468857 is about 67003.4988414784. The cubic root of 4489468857 is about 1649.6747270661.

The spelling of 4489468857 in words is "four billion, four hundred eighty-nine million, four hundred sixty-eight thousand, eight hundred fifty-seven".