64352771513 has 8 divisors (see below), whose sum is σ = 65930918760. Its totient is φ = 62775032320.

The previous prime is 64352771471. The next prime is 64352771521. The reversal of 64352771513 is 31517725346.

It can be written as a sum of positive squares in 4 ways, for example, as 1565943184 + 62786828329 = 39572^2 + 250573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64352771513 - 2²⁰ = 64351722937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64352771113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230381 + ... + 426357.

It is an arithmetic number, because the mean of its divisors is an integer number (8241364845).

Almost surely, 2^64352771513 is an apocalyptic number.

It is an amenable number.

64352771513 is a deficient number, since it is larger than the sum of its proper divisors (1578147247).

64352771513 is a wasteful number, since it uses less digits than its factorization.

64352771513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204027.

The product of its digits is 529200, while the sum is 44.

The spelling of 64352771513 in words is "sixty-four billion, three hundred fifty-two million, seven hundred seventy-one thousand, five hundred thirteen".