118518253349 has 4 divisors (see below), whose sum is σ = 118559943936. Its totient is φ = 118476562764.

The previous prime is 118518253319. The next prime is 118518253379. The reversal of 118518253349 is 943352815811.

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 an interprime number because it is at equal distance from previous prime (118518253319) and next prime (118518253379).

It is a cyclic number.

It is not a de Polignac number, because 118518253349 - 2³⁶ = 49798776613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 118518253297 and 118518253306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118518253319) 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, 20841029 + ... + 20846714.

It is an arithmetic number, because the mean of its divisors is an integer number (29639985984).

Almost surely, 2^118518253349 is an apocalyptic number.

It is an amenable number.

118518253349 is a deficient number, since it is larger than the sum of its proper divisors (41690587).

118518253349 is an equidigital number, since it uses as much as digits as its factorization.

118518253349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41690586.

The product of its digits is 1036800, while the sum is 50.

The spelling of 118518253349 in words is "one hundred eighteen billion, five hundred eighteen million, two hundred fifty-three thousand, three hundred forty-nine".