28669263804 has 36 divisors (see below), whose sum is σ = 72608140696. Its totient is φ = 9538142688.

The previous prime is 28669263803. The next prime is 28669263829. The reversal of 28669263804 is 40836296682.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28669263803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742519 + ... + 780174.

Almost surely, 2^28669263804 is an apocalyptic number.

It is an amenable number.

28669263804 is an abundant number, since it is smaller than the sum of its proper divisors (43938876892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28669263804 is a wasteful number, since it uses less digits than its factorization.

28669263804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523226 (or 1523221 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 28669263804 in words is "twenty-eight billion, six hundred sixty-nine million, two hundred sixty-three thousand, eight hundred four".