28260558473 has 4 divisors (see below), whose sum is σ = 32297781120. Its totient is φ = 24223335828.

The previous prime is 28260558463. The next prime is 28260558577. The reversal of 28260558473 is 37485506282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28260558473 - 2⁴ = 28260558457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28260558463) 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, 2018611313 + ... + 2018611326.

It is an arithmetic number, because the mean of its divisors is an integer number (8074445280).

Almost surely, 2^28260558473 is an apocalyptic number.

It is an amenable number.

28260558473 is a deficient number, since it is larger than the sum of its proper divisors (4037222647).

28260558473 is an equidigital number, since it uses as much as digits as its factorization.

28260558473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037222646.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 28260558473 in words is "twenty-eight billion, two hundred sixty million, five hundred fifty-eight thousand, four hundred seventy-three".