28673678902 has 32 divisors (see below), whose sum is σ = 48387780000. Its totient is φ = 12630201600.

The previous prime is 28673678857. The next prime is 28673678903. The reversal of 28673678902 is 20987637682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28673678903) 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 15 ways as a sum of consecutive naturals, for example, 27724 + ... + 241072.

It is an arithmetic number, because the mean of its divisors is an integer number (1512118125).

Almost surely, 2^28673678902 is an apocalyptic number.

28673678902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28673678902 is a deficient number, since it is larger than the sum of its proper divisors (19714101098).

28673678902 is a wasteful number, since it uses less digits than its factorization.

28673678902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213552.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 28673678902 in words is "twenty-eight billion, six hundred seventy-three million, six hundred seventy-eight thousand, nine hundred two".