117212644491264 has 720 divisors, whose sum is σ = 404558095791360. Its totient is φ = 33441906032640.

The previous prime is 117212644491251. The next prime is 117212644491377. The reversal of 117212644491264 is 462194446212711.

117212644491264 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 12 + 64 + 449 + 126 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 117212644491264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17059033749 + ... + 17059040619.

Almost surely, 2^{117212644491264} is an apocalyptic number.

117212644491264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117212644491264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202279047895680).

117212644491264 is an abundant number, since it is smaller than the sum of its proper divisors (287345451300096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117212644491264 is an frugal number, since it uses more digits than its factorization.

117212644491264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709 (or 7670 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 117212644491264 in words is "one hundred seventeen trillion, two hundred twelve billion, six hundred forty-four million, four hundred ninety-one thousand, two hundred sixty-four".