63904620210018 has 256 divisors, whose sum is σ = 151705380556800. Its totient is φ = 17571806208000.

The previous prime is 63904620209971. The next prime is 63904620210019. The reversal of 63904620210018 is 81001202640936.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (63904620210019) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9576591930 + ... + 9576598602.

It is an arithmetic number, because the mean of its divisors is an integer number (592599142800).

Almost surely, 2^{63904620210018} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63904620210018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75852690278400).

63904620210018 is an abundant number, since it is smaller than the sum of its proper divisors (87800760346782).

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

63904620210018 is a wasteful number, since it uses less digits than its factorization.

63904620210018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 63904620210018 in words is "sixty-three trillion, nine hundred four billion, six hundred twenty million, two hundred ten thousand, eighteen".