28993354683 has 16 divisors (see below), whose sum is σ = 38731588896. Its totient is φ = 19292048640.

The previous prime is 28993354657. The next prime is 28993354699. The reversal of 28993354683 is 38645339982.

It is not a de Polignac number, because 28993354683 - 2⁸ = 28993354427 is a prime.

It is a super-2 number, since 2×28993354683² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28993354603) 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, 4349373 + ... + 4356033.

It is an arithmetic number, because the mean of its divisors is an integer number (2420724306).

Almost surely, 2^28993354683 is an apocalyptic number.

28993354683 is a deficient number, since it is larger than the sum of its proper divisors (9738234213).

28993354683 is a wasteful number, since it uses less digits than its factorization.

28993354683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9214.

The product of its digits is 33592320, while the sum is 60.

The spelling of 28993354683 in words is "twenty-eight billion, nine hundred ninety-three million, three hundred fifty-four thousand, six hundred eighty-three".