28241559549 has 80 divisors (see below), whose sum is σ = 52503158400. Its totient is φ = 14761305216.

The previous prime is 28241559547. The next prime is 28241559613. The reversal of 28241559549 is 94595514282.

28241559549 is a `hidden beast` number, since 2 + 8 + 2 + 4 + 1 + 5 + 595 + 49 = 666.

It is not a de Polignac number, because 28241559549 - 2¹ = 28241559547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28241559495 and 28241559504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28241559547) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 267219 + ... + 357615.

It is an arithmetic number, because the mean of its divisors is an integer number (656289480).

Almost surely, 2^28241559549 is an apocalyptic number.

28241559549 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28241559549 is a deficient number, since it is larger than the sum of its proper divisors (24261598851).

28241559549 is a wasteful number, since it uses less digits than its factorization.

28241559549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90464 (or 90455 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The spelling of 28241559549 in words is "twenty-eight billion, two hundred forty-one million, five hundred fifty-nine thousand, five hundred forty-nine".