28366669033 has 4 divisors (see below), whose sum is σ = 28394183808. Its totient is φ = 28339154260.

The previous prime is 28366668989. The next prime is 28366669043. The reversal of 28366669033 is 33096666382.

It is a happy number.

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 28366669033 - 2³³ = 19776734441 is a prime.

It is a super-2 number, since 2×28366669033² (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 (28366669043) 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, 13755841 + ... + 13757902.

It is an arithmetic number, because the mean of its divisors is an integer number (7098545952).

Almost surely, 2^28366669033 is an apocalyptic number.

It is an amenable number.

28366669033 is a deficient number, since it is larger than the sum of its proper divisors (27514775).

28366669033 is a wasteful number, since it uses less digits than its factorization.

28366669033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27514774.

The product of its (nonzero) digits is 5038848, while the sum is 52.

The spelling of 28366669033 in words is "twenty-eight billion, three hundred sixty-six million, six hundred sixty-nine thousand, thirty-three".