618078618 has 24 divisors (see below), whose sum is σ = 1359160608. Its totient is φ = 202950792.

The previous prime is 618078613. The next prime is 618078641. The reversal of 618078618 is 816870816.

It is not an unprimeable number, because it can be changed into a prime (618078611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255046 + ... + 257457.

It is an arithmetic number, because the mean of its divisors is an integer number (56631692).

Almost surely, 2^618078618 is an apocalyptic number.

618078618 is an abundant number, since it is smaller than the sum of its proper divisors (741081990).

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

618078618 is a wasteful number, since it uses less digits than its factorization.

618078618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512578 (or 512575 counting only the distinct ones).

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

The square root of 618078618 is about 24861.1869789035. The cubic root of 618078618 is about 851.8201448698.

The spelling of 618078618 in words is "six hundred eighteen million, seventy-eight thousand, six hundred eighteen".