118237720249 has 4 divisors (see below), whose sum is σ = 128986603920. Its totient is φ = 107488836580.

The previous prime is 118237720247. The next prime is 118237720273. The reversal of 118237720249 is 942027732811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118237720249 - 2¹ = 118237720247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118237720199 and 118237720208.

It is not an unprimeable number, because it can be changed into a prime (118237720247) 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, 5374441819 + ... + 5374441840.

It is an arithmetic number, because the mean of its divisors is an integer number (32246650980).

Almost surely, 2^118237720249 is an apocalyptic number.

It is an amenable number.

118237720249 is a deficient number, since it is larger than the sum of its proper divisors (10748883671).

118237720249 is a wasteful number, since it uses less digits than its factorization.

118237720249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10748883670.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 118237720249 in words is "one hundred eighteen billion, two hundred thirty-seven million, seven hundred twenty thousand, two hundred forty-nine".