64468765983 has 8 divisors (see below), whose sum is σ = 87580210608. Its totient is φ = 42168249344.

The previous prime is 64468765981. The next prime is 64468766023. The reversal of 64468765983 is 38956786446.

64468765983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64468765983 - 2¹ = 64468765981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64468765981) 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, 202731810 + ... + 202732127.

It is an arithmetic number, because the mean of its divisors is an integer number (10947526326).

Almost surely, 2^64468765983 is an apocalyptic number.

64468765983 is a deficient number, since it is larger than the sum of its proper divisors (23111444625).

64468765983 is a wasteful number, since it uses less digits than its factorization.

64468765983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405463993.

The product of its digits is 209018880, while the sum is 66.

The spelling of 64468765983 in words is "sixty-four billion, four hundred sixty-eight million, seven hundred sixty-five thousand, nine hundred eighty-three".