63218350707680 has 96 divisors (see below), whose sum is σ = 170753651679744. Its totient is φ = 21666722812416.

The previous prime is 63218350707649. The next prime is 63218350707713. The reversal of 63218350707680 is 8670705381236.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7615442 + ... + 13580561.

It is an arithmetic number, because the mean of its divisors is an integer number (1778683871664).

Almost surely, 2^{63218350707680} is an apocalyptic number.

It is an amenable number.

63218350707680 is an abundant number, since it is smaller than the sum of its proper divisors (107535300972064).

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

63218350707680 is a wasteful number, since it uses less digits than its factorization.

63218350707680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21198688 (or 21198680 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 63218350707680 in words is "sixty-three trillion, two hundred eighteen billion, three hundred fifty million, seven hundred seven thousand, six hundred eighty".