117781201886 has 32 divisors (see below), whose sum is σ = 178522045632. Its totient is φ = 58277739520.

The previous prime is 117781201871. The next prime is 117781201907. The reversal of 117781201886 is 688102187711.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107366090 + ... + 107367186.

It is an arithmetic number, because the mean of its divisors is an integer number (5578813926).

Almost surely, 2^117781201886 is an apocalyptic number.

117781201886 is a deficient number, since it is larger than the sum of its proper divisors (60740843746).

117781201886 is a wasteful number, since it uses less digits than its factorization.

117781201886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404.

The product of its (nonzero) digits is 301056, while the sum is 50.

The spelling of 117781201886 in words is "one hundred seventeen billion, seven hundred eighty-one million, two hundred one thousand, eight hundred eighty-six".