28588727147 has 4 divisors (see below), whose sum is σ = 28589098056. Its totient is φ = 28588356240.

The previous prime is 28588727143. The next prime is 28588727149. The reversal of 28588727147 is 74172788582.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28588727147 - 2² = 28588727143 is a prime.

It is a super-2 number, since 2×28588727147² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28588727143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21554 + ... + 240087.

It is an arithmetic number, because the mean of its divisors is an integer number (7147274514).

Almost surely, 2^28588727147 is an apocalyptic number.

28588727147 is a deficient number, since it is larger than the sum of its proper divisors (370909).

28588727147 is a wasteful number, since it uses less digits than its factorization.

28588727147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370908.

The product of its digits is 14049280, while the sum is 59.

The spelling of 28588727147 in words is "twenty-eight billion, five hundred eighty-eight million, seven hundred twenty-seven thousand, one hundred forty-seven".