28465290269 has 4 divisors (see below), whose sum is σ = 30654927996. Its totient is φ = 26275652544.

The previous prime is 28465290241. The next prime is 28465290277. The reversal of 28465290269 is 96209256482.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18594867769 + 9870422500 = 136363^2 + 99350^2 .

It is a cyclic number.

It is not a de Polignac number, because 28465290269 - 2¹² = 28465286173 is a prime.

It is a super-2 number, since 2×28465290269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28465290269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28465290869) 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, 1094818844 + ... + 1094818869.

It is an arithmetic number, because the mean of its divisors is an integer number (7663731999).

Almost surely, 2^28465290269 is an apocalyptic number.

It is an amenable number.

28465290269 is a deficient number, since it is larger than the sum of its proper divisors (2189637727).

28465290269 is a wasteful number, since it uses less digits than its factorization.

28465290269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189637726.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 28465290269 in words is "twenty-eight billion, four hundred sixty-five million, two hundred ninety thousand, two hundred sixty-nine".