64571463730 has 16 divisors (see below), whose sum is σ = 117963391680. Its totient is φ = 25443083952.

The previous prime is 64571463707. The next prime is 64571463731. The reversal of 64571463730 is 3736417546.

It is not an unprimeable number, because it can be changed into a prime (64571463731) 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, 48186990 + ... + 48188329.

It is an arithmetic number, because the mean of its divisors is an integer number (7372711980).

Almost surely, 2^64571463730 is an apocalyptic number.

64571463730 is a deficient number, since it is larger than the sum of its proper divisors (53391927950).

64571463730 is a wasteful number, since it uses less digits than its factorization.

64571463730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96375393.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 64571463730 in words is "sixty-four billion, five hundred seventy-one million, four hundred sixty-three thousand, seven hundred thirty".