28669542336 has 84 divisors (see below), whose sum is σ = 82944245592. Its totient is φ = 9467180544.

The previous prime is 28669542331. The next prime is 28669542337. The reversal of 28669542336 is 63324596682.

It is a happy number.

28669542336 is a `hidden beast` number, since 2 + 8 + 6 + 69 + 542 + 3 + 36 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28669542331) 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, 170955 + ... + 294218.

Almost surely, 2^28669542336 is an apocalyptic number.

It is an amenable number.

28669542336 is an abundant number, since it is smaller than the sum of its proper divisors (54274703256).

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

28669542336 is a wasteful number, since it uses less digits than its factorization.

28669542336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465298 (or 465285 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The spelling of 28669542336 in words is "twenty-eight billion, six hundred sixty-nine million, five hundred forty-two thousand, three hundred thirty-six".