64470431163764 has 6 divisors (see below), whose sum is σ = 112823254536594. Its totient is φ = 32235215581880.

The previous prime is 64470431163757. The next prime is 64470431163769. The reversal of 64470431163764 is 46736113407446.

64470431163764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 58521612603364 + 5948818560400 = 7649942^2 + 2439020^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64470431163769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8058803895467 + ... + 8058803895474.

It is an arithmetic number, because the mean of its divisors is an integer number (18803875756099).

Almost surely, 2^{64470431163764} is an apocalyptic number.

It is an amenable number.

64470431163764 is a deficient number, since it is larger than the sum of its proper divisors (48352823372830).

64470431163764 is a wasteful number, since it uses less digits than its factorization.

64470431163764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16117607790945 (or 16117607790943 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 56.

The spelling of 64470431163764 in words is "sixty-four trillion, four hundred seventy billion, four hundred thirty-one million, one hundred sixty-three thousand, seven hundred sixty-four".