636132752117 has 16 divisors (see below), whose sum is σ = 650182515840. Its totient is φ = 622226841600.

The previous prime is 636132752093. The next prime is 636132752131. The reversal of 636132752117 is 711257231636.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-636132752117 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 (636132752137) 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 15 ways as a sum of consecutive naturals, for example, 55363109 + ... + 55374597.

It is an arithmetic number, because the mean of its divisors is an integer number (40636407240).

Almost surely, 2^636132752117 is an apocalyptic number.

It is an amenable number.

636132752117 is a deficient number, since it is larger than the sum of its proper divisors (14049763723).

636132752117 is a wasteful number, since it uses less digits than its factorization.

636132752117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17644.

The product of its digits is 317520, while the sum is 44.

The spelling of 636132752117 in words is "six hundred thirty-six billion, one hundred thirty-two million, seven hundred fifty-two thousand, one hundred seventeen".