618085218711 has 4 divisors (see below), whose sum is σ = 824113624952. Its totient is φ = 412056812472.

The previous prime is 618085218649. The next prime is 618085218719. The reversal of 618085218711 is 117812580816.

It is a happy number.

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

It is not a de Polignac number, because 618085218711 - 2²⁶ = 618018109847 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 (618085218719) 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, 103014203116 + ... + 103014203121.

It is an arithmetic number, because the mean of its divisors is an integer number (206028406238).

Almost surely, 2^618085218711 is an apocalyptic number.

618085218711 is a deficient number, since it is larger than the sum of its proper divisors (206028406241).

618085218711 is a wasteful number, since it uses less digits than its factorization.

618085218711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206028406240.

The product of its (nonzero) digits is 215040, while the sum is 48.

The spelling of 618085218711 in words is "six hundred eighteen billion, eighty-five million, two hundred eighteen thousand, seven hundred eleven".