618466542 has 8 divisors (see below), whose sum is σ = 1236933096. Its totient is φ = 206155512.

The previous prime is 618466529. The next prime is 618466547. The reversal of 618466542 is 245664816.

It is a sphenic number, since it is the product of 3 distinct primes.

618466542 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 618466494 and 618466503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618466547) 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, 51538873 + ... + 51538884.

It is an arithmetic number, because the mean of its divisors is an integer number (154616637).

Almost surely, 2^618466542 is an apocalyptic number.

618466542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

618466542 is a wasteful number, since it uses less digits than its factorization.

618466542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103077762.

The product of its digits is 276480, while the sum is 42.

The square root of 618466542 is about 24868.9875547840. The cubic root of 618466542 is about 851.9983165785.

The spelling of 618466542 in words is "six hundred eighteen million, four hundred sixty-six thousand, five hundred forty-two".