28682414928 has 50 divisors (see below), whose sum is σ = 83015233994. Its totient is φ = 9560804544.

The previous prime is 28682414923. The next prime is 28682415017. The reversal of 28682414928 is 82941428682.

It can be written as a sum of positive squares in only one way, i.e., 22449628224 + 6232786704 = 149832^2 + 78948^2 .

It is a super-2 number, since 2×28682414928² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28682414923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11064451 + ... + 11067042.

Almost surely, 2^28682414928 is an apocalyptic number.

It is an amenable number.

28682414928 is an abundant number, since it is smaller than the sum of its proper divisors (54332819066).

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

28682414928 is a wasteful number, since it uses less digits than its factorization.

28682414928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22131513 (or 22131498 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The spelling of 28682414928 in words is "twenty-eight billion, six hundred eighty-two million, four hundred fourteen thousand, nine hundred twenty-eight".