1618147218 has 16 divisors (see below), whose sum is σ = 3236880096. Its totient is φ = 539284800.

The previous prime is 1618147199. The next prime is 1618147247. The reversal of 1618147218 is 8127418161.

1618147218 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1618147218² = 5236800838242279048, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 16893 + ... + 59343.

It is an arithmetic number, because the mean of its divisors is an integer number (202305006).

Almost surely, 2^1618147218 is an apocalyptic number.

1618147218 is an abundant number, since it is smaller than the sum of its proper divisors (1618732878).

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

1618147218 is a wasteful number, since it uses less digits than its factorization.

1618147218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48809.

The product of its digits is 21504, while the sum is 39.

The square root of 1618147218 is about 40226.2006408758. The cubic root of 1618147218 is about 1174.0123810374.

The spelling of 1618147218 in words is "one billion, six hundred eighteen million, one hundred forty-seven thousand, two hundred eighteen".