612230781188138 has 8 divisors (see below), whose sum is σ = 1049538482036832. Its totient is φ = 262384620509196.

The previous prime is 612230781188099. The next prime is 612230781188207. The reversal of 612230781188138 is 831881187032216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21865385042420 + ... + 21865385042447.

It is an arithmetic number, because the mean of its divisors is an integer number (131192310254604).

Almost surely, 2^{612230781188138} is an apocalyptic number.

612230781188138 is a deficient number, since it is larger than the sum of its proper divisors (437307700848694).

612230781188138 is a wasteful number, since it uses less digits than its factorization.

612230781188138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43730770084876.

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 612230781188138 in words is "six hundred twelve trillion, two hundred thirty billion, seven hundred eighty-one million, one hundred eighty-eight thousand, one hundred thirty-eight".