28693044504 has 32 divisors (see below), whose sum is σ = 79702902000. Its totient is φ = 9564348096.

The previous prime is 28693044481. The next prime is 28693044539. The reversal of 28693044504 is 40544039682.

It is a self number, because there is not a number n which added to its sum of digits gives 28693044504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66418869 + ... + 66419300.

Almost surely, 2^28693044504 is an apocalyptic number.

28693044504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28693044504 is an abundant number, since it is smaller than the sum of its proper divisors (51009857496).

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

28693044504 is a wasteful number, since it uses less digits than its factorization.

28693044504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132838184 (or 132838174 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 28693044504 in words is "twenty-eight billion, six hundred ninety-three million, forty-four thousand, five hundred four".