28874457459 has 24 divisors (see below), whose sum is σ = 41831912304. Its totient is φ = 19192320000.

The previous prime is 28874457401. The next prime is 28874457461. The reversal of 28874457459 is 95475447882.

It is a happy number.

28874457459 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 4 + 4 + 574 + 59 = 666.

It is not a de Polignac number, because 28874457459 - 2⁸ = 28874457203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28874457396 and 28874457405.

It is not an unprimeable number, because it can be changed into a prime (28874456459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6011859 + ... + 6016659.

It is an arithmetic number, because the mean of its divisors is an integer number (1742996346).

Almost surely, 2^28874457459 is an apocalyptic number.

28874457459 is a deficient number, since it is larger than the sum of its proper divisors (12957454845).

28874457459 is a wasteful number, since it uses less digits than its factorization.

28874457459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659 (or 6656 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 63.

The spelling of 28874457459 in words is "twenty-eight billion, eight hundred seventy-four million, four hundred fifty-seven thousand, four hundred fifty-nine".