28653377865583 has 8 divisors (see below), whose sum is σ = 30265533410816. Its totient is φ = 27084213135000.

The previous prime is 28653377865577. The next prime is 28653377865599. The reversal of 28653377865583 is 38556877335682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28653377865583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28653377862583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10747702293 + ... + 10747704958.

It is an arithmetic number, because the mean of its divisors is an integer number (3783191676352).

Almost surely, 2^{28653377865583} is an apocalyptic number.

28653377865583 is a deficient number, since it is larger than the sum of its proper divisors (1612155545233).

28653377865583 is a wasteful number, since it uses less digits than its factorization.

28653377865583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21495407325.

The product of its digits is 6096384000, while the sum is 76.

The spelling of 28653377865583 in words is "twenty-eight trillion, six hundred fifty-three billion, three hundred seventy-seven million, eight hundred sixty-five thousand, five hundred eighty-three".