28427682097 has 4 divisors (see below), whose sum is σ = 28428218176. Its totient is φ = 28427146020.

The previous prime is 28427682043. The next prime is 28427682103. The reversal of 28427682097 is 79028672482.

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 a de Polignac number, because none of the positive numbers 2^k-28427682097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28427682697) 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, 178533 + ... + 297874.

It is an arithmetic number, because the mean of its divisors is an integer number (7107054544).

Almost surely, 2^28427682097 is an apocalyptic number.

It is an amenable number.

28427682097 is a deficient number, since it is larger than the sum of its proper divisors (536079).

28427682097 is an equidigital number, since it uses as much as digits as its factorization.

28427682097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536078.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 28427682097 in words is "twenty-eight billion, four hundred twenty-seven million, six hundred eighty-two thousand, ninety-seven".