117442671387409 has 9 divisors (see below), whose sum is σ = 121632390622353. Its totient is φ = 113392620659472.

The previous prime is 117442671387389. The next prime is 117442671387463. The reversal of 117442671387409 is 904783176244711.

It is a happy number.

The square root of 117442671387409 is 10837097.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4102629995025 + 113340041392384 = 2025495^2 + 10646128^2 .

It is not a de Polignac number, because 117442671387409 - 2¹⁵ = 117442671354641 is a prime.

It is a super-2 number, since 2×117442671387409² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117442671387709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 314088967 + ... + 314462659.

Almost surely, 2^{117442671387409} is an apocalyptic number.

117442671387409 is the 10837097-th square number.

117442671387409 is the 5418549-th centered octagonal number.

It is an amenable number.

117442671387409 is a deficient number, since it is larger than the sum of its proper divisors (4189719234944).

117442671387409 is an frugal number, since it uses more digits than its factorization.

117442671387409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747444 (or 373722 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 64.

The spelling of 117442671387409 in words is "one hundred seventeen trillion, four hundred forty-two billion, six hundred seventy-one million, three hundred eighty-seven thousand, four hundred nine".