118523898529 has 3 divisors (see below), whose sum is σ = 118524242803. Its totient is φ = 118523554256.

The previous prime is 118523898523. The next prime is 118523898539. The reversal of 118523898529 is 925898325811.

The square root of 118523898529 is 344273.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5391230625 + 113132667904 = 73425^2 + 336352^2 .

It is not a de Polignac number, because 118523898529 - 2⁵ = 118523898497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118523898523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 172137 + ... + 516409.

Almost surely, 2^118523898529 is an apocalyptic number.

118523898529 is the 344273-rd square number.

118523898529 is the 172137-th centered octagonal number.

It is an amenable number.

118523898529 is a deficient number, since it is larger than the sum of its proper divisors (344274).

118523898529 is an frugal number, since it uses more digits than its factorization.

118523898529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688546 (or 344273 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 61.

The spelling of 118523898529 in words is "one hundred eighteen billion, five hundred twenty-three million, eight hundred ninety-eight thousand, five hundred twenty-nine".