618146145039 has 4 divisors (see below), whose sum is σ = 824194860056. Its totient is φ = 412097430024.

The previous prime is 618146145011. The next prime is 618146145041. The reversal of 618146145039 is 930541641816.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 618146145039 - 2⁹ = 618146144527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618146145049) 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, 103024357504 + ... + 103024357509.

It is an arithmetic number, because the mean of its divisors is an integer number (206048715014).

Almost surely, 2^618146145039 is an apocalyptic number.

618146145039 is a deficient number, since it is larger than the sum of its proper divisors (206048715017).

618146145039 is a wasteful number, since it uses less digits than its factorization.

618146145039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206048715016.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 618146145039 in words is "six hundred eighteen billion, one hundred forty-six million, one hundred forty-five thousand, thirty-nine".