28714288697 has 4 divisors (see below), whose sum is σ = 28732429440. Its totient is φ = 28696147956.

The previous prime is 28714288693. The next prime is 28714288777. The reversal of 28714288697 is 79688241782.

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 28714288697 - 2² = 28714288693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28714288693) 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, 9067997 + ... + 9071162.

It is an arithmetic number, because the mean of its divisors is an integer number (7183107360).

Almost surely, 2^28714288697 is an apocalyptic number.

It is an amenable number.

28714288697 is a deficient number, since it is larger than the sum of its proper divisors (18140743).

28714288697 is a wasteful number, since it uses less digits than its factorization.

28714288697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18140742.

The product of its digits is 21676032, while the sum is 62.

The spelling of 28714288697 in words is "twenty-eight billion, seven hundred fourteen million, two hundred eighty-eight thousand, six hundred ninety-seven".