117499209728 has 144 divisors (see below), whose sum is σ = 244760836320. Its totient is φ = 56388771840.

The previous prime is 117499209721. The next prime is 117499209731. The reversal of 117499209728 is 827902994711.

It is not an unprimeable number, because it can be changed into a prime (117499209721) 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 11 ways as a sum of consecutive naturals, for example, 446764925 + ... + 446765187.

It is an arithmetic number, because the mean of its divisors is an integer number (1699728030).

Almost surely, 2^117499209728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117499209728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122380418160).

117499209728 is an abundant number, since it is smaller than the sum of its proper divisors (127261626592).

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

117499209728 is an equidigital number, since it uses as much as digits as its factorization.

117499209728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 117499209728 in words is "one hundred seventeen billion, four hundred ninety-nine million, two hundred nine thousand, seven hundred twenty-eight".