64713059507 has 4 divisors (see below), whose sum is σ = 64848160320. Its totient is φ = 64577958696.

The previous prime is 64713059497. The next prime is 64713059513. The reversal of 64713059507 is 70595031746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70595031746 = 2 ⋅35297515873.

It is a cyclic number.

It is not a de Polignac number, because 64713059507 - 2⁸ = 64713059251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64713059527) 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, 67549688 + ... + 67550645.

It is an arithmetic number, because the mean of its divisors is an integer number (16212040080).

Almost surely, 2^64713059507 is an apocalyptic number.

64713059507 is a deficient number, since it is larger than the sum of its proper divisors (135100813).

64713059507 is a wasteful number, since it uses less digits than its factorization.

64713059507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135100812.

The product of its (nonzero) digits is 793800, while the sum is 47.

The spelling of 64713059507 in words is "sixty-four billion, seven hundred thirteen million, fifty-nine thousand, five hundred seven".