118273801399489 has 4 divisors (see below), whose sum is σ = 118286923987156. Its totient is φ = 118260678811824.

The previous prime is 118273801399451. The next prime is 118273801399511. The reversal of 118273801399489 is 984993108372811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75135610886400 + 43138190513089 = 8668080^2 + 6567967^2 .

It is a cyclic number.

It is not a de Polignac number, because 118273801399489 - 2¹³ = 118273801391297 is a prime.

It is a super-2 number, since 2×118273801399489² (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 (118273801399889) 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, 6561280314 + ... + 6561298339.

It is an arithmetic number, because the mean of its divisors is an integer number (29571730996789).

Almost surely, 2^{118273801399489} is an apocalyptic number.

It is an amenable number.

118273801399489 is a deficient number, since it is larger than the sum of its proper divisors (13122587667).

118273801399489 is an equidigital number, since it uses as much as digits as its factorization.

118273801399489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13122587666.

The product of its (nonzero) digits is 188116992, while the sum is 73.

The spelling of 118273801399489 in words is "one hundred eighteen trillion, two hundred seventy-three billion, eight hundred one million, three hundred ninety-nine thousand, four hundred eighty-nine".