24863928489 has 9 divisors (see below), whose sum is σ = 35915246679. Its totient is φ = 16575636960.

The previous prime is 24863928469. The next prime is 24863928499. The reversal of 24863928489 is 98482936842.

The square root of 24863928489 is 157683.

It is a perfect power (a square), and thus also a powerful number.

24863928489 is a `hidden beast` number, since 2 + 4 + 8 + 63 + 92 + 8 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21335568489 + 3528360000 = 146067^2 + 59400^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 24863928489 - 2⁵ = 24863928457 is a prime.

It is a super-2 number, since 2×24863928489² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24863928469) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 446769 + ... + 499329.

Almost surely, 2^24863928489 is an apocalyptic number.

24863928489 is the 157683-rd square number.

24863928489 is the 78842-nd centered octagonal number.

It is an amenable number.

24863928489 is a deficient number, since it is larger than the sum of its proper divisors (11051318190).

24863928489 is an frugal number, since it uses more digits than its factorization.

24863928489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105128 (or 52564 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 63.

The spelling of 24863928489 in words is "twenty-four billion, eight hundred sixty-three million, nine hundred twenty-eight thousand, four hundred eighty-nine".