117730445644 has 288 divisors, whose sum is σ = 274954538880. Its totient is φ = 43713331200.

The previous prime is 117730445479. The next prime is 117730445647. The reversal of 117730445644 is 446544037711.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 117730445594 and 117730445603.

It is not an unprimeable number, because it can be changed into a prime (117730445647) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 279644554 + ... + 279644974.

It is an arithmetic number, because the mean of its divisors is an integer number (954703260).

Almost surely, 2^117730445644 is an apocalyptic number.

117730445644 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 117730445644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137477269440).

117730445644 is an abundant number, since it is smaller than the sum of its proper divisors (157224093236).

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

117730445644 is a wasteful number, since it uses less digits than its factorization.

117730445644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 117730445644 in words is "one hundred seventeen billion, seven hundred thirty million, four hundred forty-five thousand, six hundred forty-four".