618213904068 has 12 divisors (see below), whose sum is σ = 1442499109520. Its totient is φ = 206071301352.

The previous prime is 618213904057. The next prime is 618213904069. The reversal of 618213904068 is 860409312816.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (618213904069) 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, 25758912658 + ... + 25758912681.

Almost surely, 2^618213904068 is an apocalyptic number.

It is an amenable number.

618213904068 is an abundant number, since it is smaller than the sum of its proper divisors (824285205452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618213904068 is a wasteful number, since it uses less digits than its factorization.

618213904068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51517825346 (or 51517825344 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 618213904068 in words is "six hundred eighteen billion, two hundred thirteen million, nine hundred four thousand, sixty-eight".