28753636195297 has 8 divisors (see below), whose sum is σ = 30965591139560. Its totient is φ = 26541700790400.

The previous prime is 28753636195279. The next prime is 28753636195351. The reversal of 28753636195297 is 79259163635782.

It can be written as a sum of positive squares in 4 ways, for example, as 14531656585681 + 14221979609616 = 3812041^2 + 3771204^2 .

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-28753636195297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28753636195267) 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, 1754172 + ... + 7783597.

It is an arithmetic number, because the mean of its divisors is an integer number (3870698892445).

Almost surely, 2^{28753636195297} is an apocalyptic number.

It is an amenable number.

28753636195297 is a deficient number, since it is larger than the sum of its proper divisors (2211954944263).

28753636195297 is a wasteful number, since it uses less digits than its factorization.

28753636195297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9769683.

The product of its digits is 1028764800, while the sum is 73.

The spelling of 28753636195297 in words is "twenty-eight trillion, seven hundred fifty-three billion, six hundred thirty-six million, one hundred ninety-five thousand, two hundred ninety-seven".