618826320611 has 4 divisors (see below), whose sum is σ = 618828009912. Its totient is φ = 618824631312.

The previous prime is 618826320559. The next prime is 618826320653. The reversal of 618826320611 is 116023628816.

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

It is a cyclic number.

It is not a de Polignac number, because 618826320611 - 2¹⁴ = 618826304227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618826320311) 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, 39050 + ... + 1113183.

It is an arithmetic number, because the mean of its divisors is an integer number (154707002478).

Almost surely, 2^618826320611 is an apocalyptic number.

618826320611 is a deficient number, since it is larger than the sum of its proper divisors (1689301).

618826320611 is a wasteful number, since it uses less digits than its factorization.

618826320611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689300.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 618826320611 in words is "six hundred eighteen billion, eight hundred twenty-six million, three hundred twenty thousand, six hundred eleven".