118230771457 has 4 divisors (see below), whose sum is σ = 119850371140. Its totient is φ = 116611171776.

The previous prime is 118230771427. The next prime is 118230771497. The reversal of 118230771457 is 754177032811.

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 69799526416 + 48431245041 = 264196^2 + 220071^2 .

It is not a de Polignac number, because 118230771457 - 2³⁵ = 83871033089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118230771427) 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 3 ways as a sum of consecutive naturals, for example, 809799732 + ... + 809799877.

It is an arithmetic number, because the mean of its divisors is an integer number (29962592785).

Almost surely, 2^118230771457 is an apocalyptic number.

It is an amenable number.

118230771457 is a deficient number, since it is larger than the sum of its proper divisors (1619599683).

118230771457 is an equidigital number, since it uses as much as digits as its factorization.

118230771457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619599682.

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 118230771457 in words is "one hundred eighteen billion, two hundred thirty million, seven hundred seventy-one thousand, four hundred fifty-seven".