28452448858 has 8 divisors (see below), whose sum is σ = 42771253140. Its totient is φ = 14195364480.

The previous prime is 28452448853. The next prime is 28452448919. The reversal of 28452448858 is 85884425482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28292249209 + 160199649 = 168203^2 + 12657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28452448853) 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, 15428823 + ... + 15430666.

Almost surely, 2^28452448858 is an apocalyptic number.

28452448858 is a deficient number, since it is larger than the sum of its proper divisors (14318804282).

28452448858 is a wasteful number, since it uses less digits than its factorization.

28452448858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30859952.

The product of its digits is 26214400, while the sum is 58.

The spelling of 28452448858 in words is "twenty-eight billion, four hundred fifty-two million, four hundred forty-eight thousand, eight hundred fifty-eight".