64253340013 has 8 divisors (see below), whose sum is σ = 64868166720. Its totient is φ = 63641252640.

The previous prime is 64253340001. The next prime is 64253340037. The reversal of 64253340013 is 31004335246.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64253340013 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 (64253340113) 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, 637683 + ... + 731536.

It is an arithmetic number, because the mean of its divisors is an integer number (8108520840).

Almost surely, 2^64253340013 is an apocalyptic number.

It is an amenable number.

64253340013 is a deficient number, since it is larger than the sum of its proper divisors (614826707).

64253340013 is a wasteful number, since it uses less digits than its factorization.

64253340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369667.

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

Adding to 64253340013 its reverse (31004335246), we get a palindrome (95257675259).

The spelling of 64253340013 in words is "sixty-four billion, two hundred fifty-three million, three hundred forty thousand, thirteen".