64316652709 has 4 divisors (see below), whose sum is σ = 64605068416. Its totient is φ = 64028237004.

The previous prime is 64316652703. The next prime is 64316652739. The reversal of 64316652709 is 90725661346.

It is a happy number.

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: 90725661346 = 2 ⋅45362830673.

It is a cyclic number.

It is not a de Polignac number, because 64316652709 - 2⁷ = 64316652581 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 (64316652703) 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, 144207519 + ... + 144207964.

It is an arithmetic number, because the mean of its divisors is an integer number (16151267104).

Almost surely, 2^64316652709 is an apocalyptic number.

It is an amenable number.

64316652709 is a deficient number, since it is larger than the sum of its proper divisors (288415707).

64316652709 is a wasteful number, since it uses less digits than its factorization.

64316652709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288415706.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 64316652709 in words is "sixty-four billion, three hundred sixteen million, six hundred fifty-two thousand, seven hundred nine".