1618601904318 has 64 divisors (see below), whose sum is σ = 3810237649920. Its totient is φ = 448705308672.

The previous prime is 1618601904313. The next prime is 1618601904331. The reversal of 1618601904318 is 8134091068161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618601904313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 892771 + ... + 2008542.

It is an arithmetic number, because the mean of its divisors is an integer number (59534963280).

Almost surely, 2^{1618601904318} is an apocalyptic number.

1618601904318 is an abundant number, since it is smaller than the sum of its proper divisors (2191635745602).

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

1618601904318 is a wasteful number, since it uses less digits than its factorization.

1618601904318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901721.

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 1618601904318 in words is "one trillion, six hundred eighteen billion, six hundred one million, nine hundred four thousand, three hundred eighteen".