28582275479 has 4 divisors (see below), whose sum is σ = 28800460920. Its totient is φ = 28364090040.

The previous prime is 28582275451. The next prime is 28582275517. The reversal of 28582275479 is 97457228582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28582275479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28582275439) 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, 109092524 + ... + 109092785.

It is an arithmetic number, because the mean of its divisors is an integer number (7200115230).

Almost surely, 2^28582275479 is an apocalyptic number.

28582275479 is a deficient number, since it is larger than the sum of its proper divisors (218185441).

28582275479 is a wasteful number, since it uses less digits than its factorization.

28582275479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218185440.

The product of its digits is 22579200, while the sum is 59.

The spelling of 28582275479 in words is "twenty-eight billion, five hundred eighty-two million, two hundred seventy-five thousand, four hundred seventy-nine".