117897204479 has 8 divisors (see below), whose sum is σ = 121379123712. Its totient is φ = 114448927320.

The previous prime is 117897204457. The next prime is 117897204511. The reversal of 117897204479 is 974402798711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117897204479 is a prime.

It is a super-2 number, since 2×117897204479² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117897204079) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8403407 + ... + 8417424.

It is an arithmetic number, because the mean of its divisors is an integer number (15172390464).

Almost surely, 2^117897204479 is an apocalyptic number.

117897204479 is a deficient number, since it is larger than the sum of its proper divisors (3481919233).

117897204479 is a wasteful number, since it uses less digits than its factorization.

117897204479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16821037.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 117897204479 in words is "one hundred seventeen billion, eight hundred ninety-seven million, two hundred four thousand, four hundred seventy-nine".