28254559524547 has 2 divisors, whose sum is σ = 28254559524548. Its totient is φ = 28254559524546.

The previous prime is 28254559524467. The next prime is 28254559524571. The reversal of 28254559524547 is 74542595545282.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28254559524547 - 2²⁷ = 28254425306819 is a prime.

It is not a weakly prime, because it can be changed into another prime (28254559524647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14127279762273 + 14127279762274.

It is an arithmetic number, because the mean of its divisors is an integer number (14127279762274).

Almost surely, 2^{28254559524547} is an apocalyptic number.

28254559524547 is a deficient number, since it is larger than the sum of its proper divisors (1).

28254559524547 is an equidigital number, since it uses as much as digits as its factorization.

28254559524547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400000, while the sum is 67.

The spelling of 28254559524547 in words is "twenty-eight trillion, two hundred fifty-four billion, five hundred fifty-nine million, five hundred twenty-four thousand, five hundred forty-seven".