64570375001513 has 4 divisors (see below), whose sum is σ = 65141794249428. Its totient is φ = 63998955753600.

The previous prime is 64570375001471. The next prime is 64570375001533. The reversal of 64570375001513 is 31510057307546.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32654790226969 + 31915584774544 = 5714437^2 + 5649388^2 .

It is a cyclic number.

It is not a de Polignac number, because 64570375001513 - 2⁸ = 64570375001257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64570375001533) 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, 285709623788 + ... + 285709624013.

It is an arithmetic number, because the mean of its divisors is an integer number (16285448562357).

Almost surely, 2^{64570375001513} is an apocalyptic number.

It is an amenable number.

64570375001513 is a deficient number, since it is larger than the sum of its proper divisors (571419247915).

64570375001513 is a wasteful number, since it uses less digits than its factorization.

64570375001513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571419247914.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The spelling of 64570375001513 in words is "sixty-four trillion, five hundred seventy billion, three hundred seventy-five million, one thousand, five hundred thirteen".