118861038493 has 4 divisors (see below), whose sum is σ = 118863199708. Its totient is φ = 118858877280.

The previous prime is 118861038437. The next prime is 118861038539. The reversal of 118861038493 is 394830168811.

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 63223079364 + 55637959129 = 251442^2 + 235877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118861038493 is a prime.

It is a super-2 number, since 2×118861038493² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118861038493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118861068493) 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, 995898 + ... + 1108843.

It is an arithmetic number, because the mean of its divisors is an integer number (29715799927).

Almost surely, 2^118861038493 is an apocalyptic number.

It is an amenable number.

118861038493 is a deficient number, since it is larger than the sum of its proper divisors (2161215).

118861038493 is an equidigital number, since it uses as much as digits as its factorization.

118861038493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161214.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 118861038493 in words is "one hundred eighteen billion, eight hundred sixty-one million, thirty-eight thousand, four hundred ninety-three".