64473530676189 has 4 divisors (see below), whose sum is σ = 85964707568256. Its totient is φ = 42982353784124.

The previous prime is 64473530676167. The next prime is 64473530676227. The reversal of 64473530676189 is 98167603537446.

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.

It is a cyclic number.

It is not a de Polignac number, because 64473530676189 - 2⁸ = 64473530675933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64473530676589) 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, 10745588446029 + ... + 10745588446034.

It is an arithmetic number, because the mean of its divisors is an integer number (21491176892064).

Almost surely, 2^{64473530676189} is an apocalyptic number.

It is an amenable number.

64473530676189 is a deficient number, since it is larger than the sum of its proper divisors (21491176892067).

64473530676189 is a wasteful number, since it uses less digits than its factorization.

64473530676189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21491176892066.

The product of its (nonzero) digits is 548674560, while the sum is 69.

The spelling of 64473530676189 in words is "sixty-four trillion, four hundred seventy-three billion, five hundred thirty million, six hundred seventy-six thousand, one hundred eighty-nine".