618014716821 has 24 divisors (see below), whose sum is σ = 951566096000. Its totient is φ = 385384252032.

The previous prime is 618014716793. The next prime is 618014716829. The reversal of 618014716821 is 128617410816.

618014716821 is a `hidden beast` number, since 618 + 0 + 1 + 4 + 7 + 1 + 6 + 8 + 21 = 666.

618014716821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 618014716821 - 2¹⁴ = 618014700437 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 (618014716829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22860676 + ... + 22887693.

Almost surely, 2^618014716821 is an apocalyptic number.

It is an amenable number.

618014716821 is a deficient number, since it is larger than the sum of its proper divisors (333551379179).

618014716821 is a wasteful number, since it uses less digits than its factorization.

618014716821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45748473 (or 45748470 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 618014716821 in words is "six hundred eighteen billion, fourteen million, seven hundred sixteen thousand, eight hundred twenty-one".