28325417577 has 4 divisors (see below), whose sum is σ = 37767223440. Its totient is φ = 18883611716.

The previous prime is 28325417551. The next prime is 28325417581. The reversal of 28325417577 is 77571452382.

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 28325417577 - 2⁶ = 28325417513 is a prime.

It is a super-2 number, since 2×28325417577² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28325417507) 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, 4720902927 + ... + 4720902932.

It is an arithmetic number, because the mean of its divisors is an integer number (9441805860).

Almost surely, 2^28325417577 is an apocalyptic number.

It is an amenable number.

28325417577 is a deficient number, since it is larger than the sum of its proper divisors (9441805863).

28325417577 is an equidigital number, since it uses as much as digits as its factorization.

28325417577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441805862.

The product of its digits is 3292800, while the sum is 51.

The spelling of 28325417577 in words is "twenty-eight billion, three hundred twenty-five million, four hundred seventeen thousand, five hundred seventy-seven".