64335883441 has 4 divisors (see below), whose sum is σ = 64340230384. Its totient is φ = 64331536500.

The previous prime is 64335883421. The next prime is 64335883463. The reversal of 64335883441 is 14438853346.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14438853346 = 2 ⋅7219426673.

It is a cyclic number.

It is not a de Polignac number, because 64335883441 - 2²⁵ = 64302329009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64335883421) 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 in 3 ways as a sum of consecutive naturals, for example, 2151195 + ... + 2180896.

It is an arithmetic number, because the mean of its divisors is an integer number (16085057596).

Almost surely, 2^64335883441 is an apocalyptic number.

It is an amenable number.

64335883441 is a deficient number, since it is larger than the sum of its proper divisors (4346943).

64335883441 is a wasteful number, since it uses less digits than its factorization.

64335883441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346942.

The product of its digits is 3317760, while the sum is 49.

The spelling of 64335883441 in words is "sixty-four billion, three hundred thirty-five million, eight hundred eighty-three thousand, four hundred forty-one".