64383324673783 has 4 divisors (see below), whose sum is σ = 64383638712768. Its totient is φ = 64383010634800.

The previous prime is 64383324673777. The next prime is 64383324673819. The reversal of 64383324673783 is 38737642338346.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64383324673783 - 2¹³ = 64383324665591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64383324673483) 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, 156711766 + ... + 157122067.

It is an arithmetic number, because the mean of its divisors is an integer number (16095909678192).

Almost surely, 2^{64383324673783} is an apocalyptic number.

64383324673783 is a deficient number, since it is larger than the sum of its proper divisors (314038985).

64383324673783 is a wasteful number, since it uses less digits than its factorization.

64383324673783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314038984.

The product of its digits is 877879296, while the sum is 67.

The spelling of 64383324673783 in words is "sixty-four trillion, three hundred eighty-three billion, three hundred twenty-four million, six hundred seventy-three thousand, seven hundred eighty-three".