64432023446 has 24 divisors (see below), whose sum is σ = 114332864040. Its totient is φ = 27145692672.

The previous prime is 64432023431. The next prime is 64432023449.

64432023446 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64432023449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5565995 + ... + 5577558.

It is an arithmetic number, because the mean of its divisors is an integer number (4763869335).

Almost surely, 2^64432023446 is an apocalyptic number.

64432023446 is a deficient number, since it is larger than the sum of its proper divisors (49900840594).

64432023446 is a wasteful number, since it uses less digits than its factorization.

64432023446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143628 (or 11143621 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

It can be divided in two parts, 644320 and 23446, that added together give a palindrome (667766).

The spelling of 64432023446 in words is "sixty-four billion, four hundred thirty-two million, twenty-three thousand, four hundred forty-six".