117721344473 has 4 divisors (see below), whose sum is σ = 124646129460. Its totient is φ = 110796559488.

The previous prime is 117721344457. The next prime is 117721344493. The reversal of 117721344473 is 374443127711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374443127711 = 503 ⋅744419737.

It can be written as a sum of positive squares in 2 ways, for example, as 55322803264 + 62398541209 = 235208^2 + 249797^2 .

It is a cyclic number.

It is not a de Polignac number, because 117721344473 - 2⁴ = 117721344457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117721344493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462392468 + ... + 3462392501.

It is an arithmetic number, because the mean of its divisors is an integer number (31161532365).

Almost surely, 2^117721344473 is an apocalyptic number.

It is an amenable number.

117721344473 is a deficient number, since it is larger than the sum of its proper divisors (6924784987).

117721344473 is an equidigital number, since it uses as much as digits as its factorization.

117721344473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924784986.

The product of its digits is 395136, while the sum is 44.

The spelling of 117721344473 in words is "one hundred seventeen billion, seven hundred twenty-one million, three hundred forty-four thousand, four hundred seventy-three".