28973686895 has 8 divisors (see below), whose sum is σ = 35187321456. Its totient is φ = 22899684736.

The previous prime is 28973686813. The next prime is 28973686897. The reversal of 28973686895 is 59868637982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28973686895 - 2⁸ = 28973686639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28973686897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34907642 + ... + 34908471.

It is an arithmetic number, because the mean of its divisors is an integer number (4398415182).

Almost surely, 2^28973686895 is an apocalyptic number.

28973686895 is a deficient number, since it is larger than the sum of its proper divisors (6213634561).

28973686895 is an equidigital number, since it uses as much as digits as its factorization.

28973686895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69816201.

The product of its digits is 313528320, while the sum is 71.

The spelling of 28973686895 in words is "twenty-eight billion, nine hundred seventy-three million, six hundred eighty-six thousand, eight hundred ninety-five".