64043135834 has 4 divisors (see below), whose sum is σ = 96064703754. Its totient is φ = 32021567916.

The previous prime is 64043135801. The next prime is 64043135837. The reversal of 64043135834 is 43853134046.

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

It can be written as a sum of positive squares in only one way, i.e., 40319435209 + 23723700625 = 200797^2 + 154025^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64043135791 and 64043135800.

It is not an unprimeable number, because it can be changed into a prime (64043135837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010783957 + ... + 16010783960.

Almost surely, 2^64043135834 is an apocalyptic number.

64043135834 is a deficient number, since it is larger than the sum of its proper divisors (32021567920).

64043135834 is a wasteful number, since it uses less digits than its factorization.

64043135834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32021567919.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 64043135834 in words is "sixty-four billion, forty-three million, one hundred thirty-five thousand, eight hundred thirty-four".