63204518818 has 16 divisors (see below), whose sum is σ = 114053267520. Its totient is φ = 25661984976.

The previous prime is 63204518813. The next prime is 63204518831. The reversal of 63204518818 is 81881540236.

It is a super-2 number, since 2×63204518818² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63204518813) 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 7 ways as a sum of consecutive naturals, for example, 118805221 + ... + 118805752.

It is an arithmetic number, because the mean of its divisors is an integer number (7128329220).

Almost surely, 2^63204518818 is an apocalyptic number.

63204518818 is a deficient number, since it is larger than the sum of its proper divisors (50848748702).

63204518818 is a wasteful number, since it uses less digits than its factorization.

63204518818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237611001.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 63204518818 in words is "sixty-three billion, two hundred four million, five hundred eighteen thousand, eight hundred eighteen".