18641795046 has 32 divisors (see below), whose sum is σ = 43413781248. Its totient is φ = 5225731680.

The previous prime is 18641795027. The next prime is 18641795047. The reversal of 18641795046 is 64059714681.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18641795046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18641795047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185060 + ... + 4189511.

It is an arithmetic number, because the mean of its divisors is an integer number (1356680664).

Almost surely, 2^18641795046 is an apocalyptic number.

18641795046 is an abundant number, since it is smaller than the sum of its proper divisors (24771986202).

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

18641795046 is a wasteful number, since it uses less digits than its factorization.

18641795046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374636.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 18641795046 in words is "eighteen billion, six hundred forty-one million, seven hundred ninety-five thousand, forty-six".