53868165635 has 4 divisors (see below), whose sum is σ = 64641798768. Its totient is φ = 43094532504.

The previous prime is 53868165619. The next prime is 53868165679. The reversal of 53868165635 is 53656186835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53656186835 = 5 ⋅10731237367.

It is a cyclic number.

It is not a de Polignac number, because 53868165635 - 2⁴ = 53868165619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5386816559 + ... + 5386816568.

It is an arithmetic number, because the mean of its divisors is an integer number (16160449692).

Almost surely, 2^53868165635 is an apocalyptic number.

53868165635 is a deficient number, since it is larger than the sum of its proper divisors (10773633133).

53868165635 is a wasteful number, since it uses less digits than its factorization.

53868165635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10773633132.

The product of its digits is 15552000, while the sum is 56.

The spelling of 53868165635 in words is "fifty-three billion, eight hundred sixty-eight million, one hundred sixty-five thousand, six hundred thirty-five".