63640065640043 has 4 divisors (see below), whose sum is σ = 63642075336840. Its totient is φ = 63638055943248.

The previous prime is 63640065640003. The next prime is 63640065640091. The reversal of 63640065640043 is 34004656004636.

63640065640043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63640065640043 - 2²⁴ = 63640048862827 is a prime.

It is a super-3 number, since 3×63640065640043³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63640065640043.

It is not an unprimeable number, because it can be changed into a prime (63640065640003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004800898 + ... + 1004864231.

It is an arithmetic number, because the mean of its divisors is an integer number (15910518834210).

Almost surely, 2^{63640065640043} is an apocalyptic number.

63640065640043 is a deficient number, since it is larger than the sum of its proper divisors (2009696797).

63640065640043 is a wasteful number, since it uses less digits than its factorization.

63640065640043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009696796.

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 63640065640043 in words is "sixty-three trillion, six hundred forty billion, sixty-five million, six hundred forty thousand, forty-three".