63685966958636 has 192 divisors, whose sum is σ = 131927700602880. Its totient is φ = 26573634339840.

The previous prime is 63685966958573. The next prime is 63685966958639.

63685966958636 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (63685966958639) 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 63 ways as a sum of consecutive naturals, for example, 14869474151 + ... + 14869478433.

It is an arithmetic number, because the mean of its divisors is an integer number (687123440640).

Almost surely, 2^{63685966958636} is an apocalyptic number.

It is an amenable number.

63685966958636 is an abundant number, since it is smaller than the sum of its proper divisors (68241733644244).

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

63685966958636 is a wasteful number, since it uses less digits than its factorization.

63685966958636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724 (or 5722 counting only the distinct ones).

The product of its digits is 54419558400, while the sum is 86.

The spelling of 63685966958636 in words is "sixty-three trillion, six hundred eighty-five billion, nine hundred sixty-six million, nine hundred fifty-eight thousand, six hundred thirty-six".