64031605264543 has 4 divisors (see below), whose sum is σ = 73178977445200. Its totient is φ = 54884233083888.

The previous prime is 64031605264541. The next prime is 64031605264573. The reversal of 64031605264543 is 34546250613046.

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 64031605264543 - 2¹ = 64031605264541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64031605264541) 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, 4573686090318 + ... + 4573686090331.

It is an arithmetic number, because the mean of its divisors is an integer number (18294744361300).

Almost surely, 2^{64031605264543} is an apocalyptic number.

64031605264543 is a deficient number, since it is larger than the sum of its proper divisors (9147372180657).

64031605264543 is an equidigital number, since it uses as much as digits as its factorization.

64031605264543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9147372180656.

The product of its (nonzero) digits is 6220800, while the sum is 49.

Adding to 64031605264543 its reverse (34546250613046), we get a palindrome (98577855877589).

The spelling of 64031605264543 in words is "sixty-four trillion, thirty-one billion, six hundred five million, two hundred sixty-four thousand, five hundred forty-three".