117972721298 has 8 divisors (see below), whose sum is σ = 178250754492. Its totient is φ = 58555803136.

The previous prime is 117972721283. The next prime is 117972721301. The reversal of 117972721298 is 892127279711.

It can be written as a sum of positive squares in 2 ways, for example, as 107887942369 + 10084778929 = 328463^2 + 100423^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215278415 + ... + 215278962.

Almost surely, 2^117972721298 is an apocalyptic number.

117972721298 is a deficient number, since it is larger than the sum of its proper divisors (60278033194).

117972721298 is a wasteful number, since it uses less digits than its factorization.

117972721298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430557516.

The product of its digits is 1778112, while the sum is 56.

The spelling of 117972721298 in words is "one hundred seventeen billion, nine hundred seventy-two million, seven hundred twenty-one thousand, two hundred ninety-eight".