28464257695 has 4 divisors (see below), whose sum is σ = 34157109240. Its totient is φ = 22771406152.

The previous prime is 28464257693. The next prime is 28464257699. The reversal of 28464257695 is 59675246482.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28464257695 - 2¹ = 28464257693 is a prime.

It is a super-2 number, since 2×28464257695² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28464257693) 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, 2846425765 + ... + 2846425774.

It is an arithmetic number, because the mean of its divisors is an integer number (8539277310).

Almost surely, 2^28464257695 is an apocalyptic number.

28464257695 is a deficient number, since it is larger than the sum of its proper divisors (5692851545).

28464257695 is an equidigital number, since it uses as much as digits as its factorization.

28464257695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692851544.

The product of its digits is 29030400, while the sum is 58.

The spelling of 28464257695 in words is "twenty-eight billion, four hundred sixty-four million, two hundred fifty-seven thousand, six hundred ninety-five".