63684066572274 has 8 divisors (see below), whose sum is σ = 127368133144560. Its totient is φ = 21228022190756.

The previous prime is 63684066572261. The next prime is 63684066572279. The reversal of 63684066572274 is 47227566048636.

It is a sphenic number, since it is the product of 3 distinct primes.

63684066572274 is an admirable number.

It is a super-4 number, since 4×63684066572274⁴ (a number of 56 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (63684066572279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5307005547684 + ... + 5307005547695.

It is an arithmetic number, because the mean of its divisors is an integer number (15921016643070).

Almost surely, 2^{63684066572274} is an apocalyptic number.

63684066572274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63684066572274 is a wasteful number, since it uses less digits than its factorization.

63684066572274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10614011095384.

The product of its (nonzero) digits is 487710720, while the sum is 66.

The spelling of 63684066572274 in words is "sixty-three trillion, six hundred eighty-four billion, sixty-six million, five hundred seventy-two thousand, two hundred seventy-four".