117850561187 has 4 divisors (see below), whose sum is σ = 117856370736. Its totient is φ = 117844751640.

The previous prime is 117850561141. The next prime is 117850561237. The reversal of 117850561187 is 781165058711.

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 117850561187 - 2¹² = 117850557091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117850566187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2874239 + ... + 2914952.

It is an arithmetic number, because the mean of its divisors is an integer number (29464092684).

Almost surely, 2^117850561187 is an apocalyptic number.

117850561187 is a deficient number, since it is larger than the sum of its proper divisors (5809549).

117850561187 is an equidigital number, since it uses as much as digits as its factorization.

117850561187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809548.

The product of its (nonzero) digits is 470400, while the sum is 50.

The spelling of 117850561187 in words is "one hundred seventeen billion, eight hundred fifty million, five hundred sixty-one thousand, one hundred eighty-seven".