117446636531 has 4 divisors (see below), whose sum is σ = 134224727472. Its totient is φ = 100668545592.

The previous prime is 117446636479. The next prime is 117446636557. The reversal of 117446636531 is 135636644711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117446636531 - 2⁶ = 117446636467 is a prime.

It is a super-2 number, since 2×117446636531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117446635531) 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 3 ways as a sum of consecutive naturals, for example, 8389045460 + ... + 8389045473.

It is an arithmetic number, because the mean of its divisors is an integer number (33556181868).

Almost surely, 2^117446636531 is an apocalyptic number.

117446636531 is a deficient number, since it is larger than the sum of its proper divisors (16778090941).

117446636531 is an equidigital number, since it uses as much as digits as its factorization.

117446636531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16778090940.

The product of its digits is 1088640, while the sum is 47.

The spelling of 117446636531 in words is "one hundred seventeen billion, four hundred forty-six million, six hundred thirty-six thousand, five hundred thirty-one".