64410417542543 has 4 divisors (see below), whose sum is σ = 65074442465760. Its totient is φ = 63746392619328.

The previous prime is 64410417542519. The next prime is 64410417542557. The reversal of 64410417542543 is 34524571401446.

It is a happy number.

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 64410417542543 - 2⁸ = 64410417542287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64410417542491 and 64410417542500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64410417512543) 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, 332012461463 + ... + 332012461656.

It is an arithmetic number, because the mean of its divisors is an integer number (16268610616440).

Almost surely, 2^{64410417542543} is an apocalyptic number.

64410417542543 is a deficient number, since it is larger than the sum of its proper divisors (664024923217).

64410417542543 is an equidigital number, since it uses as much as digits as its factorization.

64410417542543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664024923216.

The product of its (nonzero) digits is 6451200, while the sum is 50.

Adding to 64410417542543 its reverse (34524571401446), we get a palindrome (98934988943989).

The spelling of 64410417542543 in words is "sixty-four trillion, four hundred ten billion, four hundred seventeen million, five hundred forty-two thousand, five hundred forty-three".