117780062481 has 27 divisors (see below), whose sum is σ = 171567961929. Its totient is φ = 77860428552.

The previous prime is 117780062479. The next prime is 117780062489. The reversal of 117780062481 is 184260087711.

The square root of 117780062481 is 343191.

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

117780062481 is a `hidden beast` number, since 1 + 17 + 7 + 8 + 0 + 0 + 624 + 8 + 1 = 666.

It is not a de Polignac number, because 117780062481 - 2¹ = 117780062479 is a prime.

It is a super-2 number, since 2×117780062481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117780062489) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 143110236 + ... + 143111058.

Almost surely, 2^117780062481 is an apocalyptic number.

117780062481 is the 343191-st square number.

117780062481 is the 171596-th centered octagonal number.

It is an amenable number.

117780062481 is a deficient number, since it is larger than the sum of its proper divisors (53787899448).

117780062481 is an frugal number, since it uses more digits than its factorization.

117780062481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 117780062481 in words is "one hundred seventeen billion, seven hundred eighty million, sixty-two thousand, four hundred eighty-one".