64463513730 has 64 divisors (see below), whose sum is σ = 192888235008. Its totient is φ = 13395015360.

The previous prime is 64463513729. The next prime is 64463513731. The reversal of 64463513730 is 3731536446.

It is an interprime number because it is at equal distance from previous prime (64463513729) and next prime (64463513731).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (64463513731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13950832 + ... + 13955451.

It is an arithmetic number, because the mean of its divisors is an integer number (3013878672).

Almost surely, 2^64463513730 is an apocalyptic number.

64463513730 is an abundant number, since it is smaller than the sum of its proper divisors (128424721278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64463513730 is a wasteful number, since it uses less digits than its factorization.

64463513730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27906311.

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 64463513730 in words is "sixty-four billion, four hundred sixty-three million, five hundred thirteen thousand, seven hundred thirty".