4345845832018 has 4 divisors (see below), whose sum is σ = 6518768748030. Its totient is φ = 2172922916008.

The previous prime is 4345845832001. The next prime is 4345845832021. The reversal of 4345845832018 is 8102385485434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4339584749889 + 6261082129 = 2083167^2 + 79127^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4345845832018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086461458003 + ... + 1086461458006.

Almost surely, 2^{4345845832018} is an apocalyptic number.

4345845832018 is a deficient number, since it is larger than the sum of its proper divisors (2172922916012).

4345845832018 is a wasteful number, since it uses less digits than its factorization.

4345845832018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172922916011.

The product of its (nonzero) digits is 14745600, while the sum is 55.

The spelling of 4345845832018 in words is "four trillion, three hundred forty-five billion, eight hundred forty-five million, eight hundred thirty-two thousand, eighteen".