618839363849 has 8 divisors (see below), whose sum is σ = 707252133120. Its totient is φ = 530428381056.

The previous prime is 618839363801. The next prime is 618839363867. The reversal of 618839363849 is 948363938816.

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

It is a de Polignac number, because none of the positive numbers 2^k-618839363849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618839363249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403577 + ... + 1183449.

It is an arithmetic number, because the mean of its divisors is an integer number (88406516640).

Almost surely, 2^618839363849 is an apocalyptic number.

It is an amenable number.

618839363849 is a deficient number, since it is larger than the sum of its proper divisors (88412769271).

618839363849 is a wasteful number, since it uses less digits than its factorization.

618839363849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893239.

The product of its digits is 161243136, while the sum is 68.

The spelling of 618839363849 in words is "six hundred eighteen billion, eight hundred thirty-nine million, three hundred sixty-three thousand, eight hundred forty-nine".