28953578393 has 16 divisors (see below), whose sum is σ = 30796329600. Its totient is φ = 27143020800.

The previous prime is 28953578351. The next prime is 28953578417. The reversal of 28953578393 is 39387535982.

It is a cyclic number.

It is not a de Polignac number, because 28953578393 - 2¹⁰ = 28953577369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28953578293) 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, 5003780 + ... + 5009562.

It is an arithmetic number, because the mean of its divisors is an integer number (1924770600).

Almost surely, 2^28953578393 is an apocalyptic number.

It is an amenable number.

28953578393 is a deficient number, since it is larger than the sum of its proper divisors (1842751207).

28953578393 is a wasteful number, since it uses less digits than its factorization.

28953578393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512.

The product of its digits is 48988800, while the sum is 62.

The spelling of 28953578393 in words is "twenty-eight billion, nine hundred fifty-three million, five hundred seventy-eight thousand, three hundred ninety-three".