618380011 has 4 divisors (see below), whose sum is σ = 618881152. Its totient is φ = 617878872.

The previous prime is 618379919. The next prime is 618380029. The reversal of 618380011 is 110083816.

It is a happy number.

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 618380011 - 2¹⁹ = 617855723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618380041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248715 + ... + 251188.

It is an arithmetic number, because the mean of its divisors is an integer number (154720288).

Almost surely, 2^618380011 is an apocalyptic number.

618380011 is a deficient number, since it is larger than the sum of its proper divisors (501141).

618380011 is a wasteful number, since it uses less digits than its factorization.

618380011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501140.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 618380011 is about 24867.2477568387. The cubic root of 618380011 is about 851.9585797456.

The spelling of 618380011 in words is "six hundred eighteen million, three hundred eighty thousand, eleven".