64530247361 has 16 divisors (see below), whose sum is σ = 67312593216. Its totient is φ = 61807427136.

The previous prime is 64530247339. The next prime is 64530247381. The reversal of 64530247361 is 16374203546.

64530247361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64530247361 - 2¹⁴ = 64530230977 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64530247381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5014211 + ... + 5027063.

It is an arithmetic number, because the mean of its divisors is an integer number (4207037076).

Almost surely, 2^64530247361 is an apocalyptic number.

It is an amenable number.

64530247361 is a deficient number, since it is larger than the sum of its proper divisors (2782345855).

64530247361 is a wasteful number, since it uses less digits than its factorization.

64530247361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15152.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 64530247361 in words is "sixty-four billion, five hundred thirty million, two hundred forty-seven thousand, three hundred sixty-one".