117543831812 has 48 divisors (see below), whose sum is σ = 230823419904. Its totient is φ = 51913092000.

The previous prime is 117543831781. The next prime is 117543831851. The reversal of 117543831812 is 218138345711.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 198737 + ... + 524007.

It is an arithmetic number, because the mean of its divisors is an integer number (4808821248).

Almost surely, 2^117543831812 is an apocalyptic number.

It is an amenable number.

117543831812 is a deficient number, since it is larger than the sum of its proper divisors (113279588092).

117543831812 is a wasteful number, since it uses less digits than its factorization.

117543831812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325520 (or 325518 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The spelling of 117543831812 in words is "one hundred seventeen billion, five hundred forty-three million, eight hundred thirty-one thousand, eight hundred twelve".