28333670399 has 16 divisors (see below), whose sum is σ = 29862120960. Its totient is φ = 26831244000.

The previous prime is 28333670389. The next prime is 28333670413. The reversal of 28333670399 is 99307633382.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28333670399 is a prime.

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 28333670399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28333670389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949397 + ... + 978785.

It is an arithmetic number, because the mean of its divisors is an integer number (1866382560).

Almost surely, 2^28333670399 is an apocalyptic number.

28333670399 is a deficient number, since it is larger than the sum of its proper divisors (1528450561).

28333670399 is a wasteful number, since it uses less digits than its factorization.

28333670399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29830.

The product of its (nonzero) digits is 4408992, while the sum is 53.

The spelling of 28333670399 in words is "twenty-eight billion, three hundred thirty-three million, six hundred seventy thousand, three hundred ninety-nine".