64530342013 has 4 divisors (see below), whose sum is σ = 64819715968. Its totient is φ = 64240968060.

The previous prime is 64530341963. The next prime is 64530342089. The reversal of 64530342013 is 31024303546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31024303546 = 2 ⋅15512151773.

It is a cyclic number.

It is not a de Polignac number, because 64530342013 - 2²¹ = 64528244861 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 (64530342113) 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 3 ways as a sum of consecutive naturals, for example, 144686643 + ... + 144687088.

It is an arithmetic number, because the mean of its divisors is an integer number (16204928992).

Almost surely, 2^64530342013 is an apocalyptic number.

It is an amenable number.

64530342013 is a deficient number, since it is larger than the sum of its proper divisors (289373955).

64530342013 is a wasteful number, since it uses less digits than its factorization.

64530342013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289373954.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 64530342013 its reverse (31024303546), we get a palindrome (95554645559).

The spelling of 64530342013 in words is "sixty-four billion, five hundred thirty million, three hundred forty-two thousand, thirteen".