64443662434 has 8 divisors (see below), whose sum is σ = 97171596288. Its totient is φ = 32053130340.

The previous prime is 64443662419. The next prime is 64443662447. The reversal of 64443662434 is 43426634446.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84349962 + ... + 84350725.

It is an arithmetic number, because the mean of its divisors is an integer number (12146449536).

Almost surely, 2^64443662434 is an apocalyptic number.

64443662434 is a deficient number, since it is larger than the sum of its proper divisors (32727933854).

64443662434 is a wasteful number, since it uses less digits than its factorization.

64443662434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168700880.

The product of its digits is 3981312, while the sum is 46.

The spelling of 64443662434 in words is "sixty-four billion, four hundred forty-three million, six hundred sixty-two thousand, four hundred thirty-four".