20635902268193 has 8 divisors (see below), whose sum is σ = 20665605542400. Its totient is φ = 20606201779968.

The previous prime is 20635902268133. The next prime is 20635902268199. The reversal of 20635902268193 is 39186220953602.

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-20635902268193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20635902268199) 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, 14362280 + ... + 15733622.

It is an arithmetic number, because the mean of its divisors is an integer number (2583200692800).

Almost surely, 2^{20635902268193} is an apocalyptic number.

It is an amenable number.

20635902268193 is a deficient number, since it is larger than the sum of its proper divisors (29703274207).

20635902268193 is a wasteful number, since it uses less digits than its factorization.

20635902268193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392991.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 20635902268193 in words is "twenty trillion, six hundred thirty-five billion, nine hundred two million, two hundred sixty-eight thousand, one hundred ninety-three".