64333923983 has 8 divisors (see below), whose sum is σ = 73527361440. Its totient is φ = 55141205760.

The previous prime is 64333923949. The next prime is 64333924033. The reversal of 64333923983 is 38932933346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64333923983 - 2¹² = 64333919887 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 (64333923923) 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, 27863 + ... + 359783.

It is an arithmetic number, because the mean of its divisors is an integer number (9190920180).

Almost surely, 2^64333923983 is an apocalyptic number.

64333923983 is a deficient number, since it is larger than the sum of its proper divisors (9193437457).

64333923983 is a wasteful number, since it uses less digits than its factorization.

64333923983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359617.

The product of its digits is 7558272, while the sum is 53.

The spelling of 64333923983 in words is "sixty-four billion, three hundred thirty-three million, nine hundred twenty-three thousand, nine hundred eighty-three".