117729961924 has 9 divisors (see below), whose sum is σ = 206028634287. Its totient is φ = 58864637844.

The previous prime is 117729961907. The next prime is 117729961981. The reversal of 117729961924 is 429169927711.

It is a happy number.

The square root of 117729961924 is 343118.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×117729961924³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 600457 + ... + 772015.

Almost surely, 2^117729961924 is an apocalyptic number.

117729961924 is the 343118-th square number.

It is an amenable number.

117729961924 is a deficient number, since it is larger than the sum of its proper divisors (88298672363).

117729961924 is an frugal number, since it uses more digits than its factorization.

117729961924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343122 (or 171561 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 58.

The spelling of 117729961924 in words is "one hundred seventeen billion, seven hundred twenty-nine million, nine hundred sixty-one thousand, nine hundred twenty-four".