618828816 has 40 divisors (see below), whose sum is σ = 1625744160. Its totient is φ = 202779136.

The previous prime is 618828809. The next prime is 618828839.

618828816 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106425 + ... + 112088.

It is an arithmetic number, because the mean of its divisors is an integer number (40643604).

Almost surely, 2^618828816 is an apocalyptic number.

It is an amenable number.

618828816 is an abundant number, since it is smaller than the sum of its proper divisors (1006915344).

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

618828816 is a wasteful number, since it uses less digits than its factorization.

618828816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218583 (or 218577 counting only the distinct ones).

The product of its digits is 294912, while the sum is 48.

The square root of 618828816 is about 24876.2701384271. The cubic root of 618828816 is about 852.1646400955.

The spelling of 618828816 in words is "six hundred eighteen million, eight hundred twenty-eight thousand, eight hundred sixteen".