28693999992 has 64 divisors (see below), whose sum is σ = 82029542400. Its totient is φ = 8193617280.

The previous prime is 28693999963. The next prime is 28694000003. The reversal of 28693999992 is 29999939682.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 252817 + ... + 348287.

It is an arithmetic number, because the mean of its divisors is an integer number (1281711600).

Almost surely, 2^28693999992 is an apocalyptic number.

It is an amenable number.

28693999992 is an abundant number, since it is smaller than the sum of its proper divisors (53335542408).

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

28693999992 is a wasteful number, since it uses less digits than its factorization.

28693999992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97276 (or 97272 counting only the distinct ones).

The product of its digits is 306110016, while the sum is 75.

The spelling of 28693999992 in words is "twenty-eight billion, six hundred ninety-three million, nine hundred ninety-nine thousand, nine hundred ninety-two".