64332135841 has 4 divisors (see below), whose sum is σ = 64364320000. Its totient is φ = 64299951684.

The previous prime is 64332135821. The next prime is 64332135871. The reversal of 64332135841 is 14853123346.

It is a happy number.

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 64332135841 - 2¹¹ = 64332133793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64332135794 and 64332135803.

It is not an unprimeable number, because it can be changed into a prime (64332135821) 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, 16089081 + ... + 16093078.

It is an arithmetic number, because the mean of its divisors is an integer number (16091080000).

Almost surely, 2^64332135841 is an apocalyptic number.

It is an amenable number.

64332135841 is a deficient number, since it is larger than the sum of its proper divisors (32184159).

64332135841 is a wasteful number, since it uses less digits than its factorization.

64332135841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32184158.

The product of its digits is 207360, while the sum is 40.

The spelling of 64332135841 in words is "sixty-four billion, three hundred thirty-two million, one hundred thirty-five thousand, eight hundred forty-one".