618945068 has 36 divisors (see below), whose sum is σ = 1286822880. Its totient is φ = 259614432.

The previous prime is 618945049. The next prime is 618945073. The reversal of 618945068 is 860549816.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24383 + ... + 42806.

It is an arithmetic number, because the mean of its divisors is an integer number (35745080).

Almost surely, 2^618945068 is an apocalyptic number.

It is an amenable number.

618945068 is an abundant number, since it is smaller than the sum of its proper divisors (667877812).

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

618945068 is a wasteful number, since it uses less digits than its factorization.

618945068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67254 (or 67245 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 618945068 is about 24878.6066330090. The cubic root of 618945068 is about 852.2179987619.

The spelling of 618945068 in words is "six hundred eighteen million, nine hundred forty-five thousand, sixty-eight".