64423232446 has 16 divisors (see below), whose sum is σ = 101661447600. Its totient is φ = 30573735808.

The previous prime is 64423232443. The next prime is 64423232449.

64423232446 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (64423232443) and next prime (64423232449).

It is a junction number, because it is equal to n+sod(n) for n = 64423232399 and 64423232408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64423232443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9409675 + ... + 9416518.

It is an arithmetic number, because the mean of its divisors is an integer number (6353840475).

Almost surely, 2^64423232446 is an apocalyptic number.

64423232446 is a deficient number, since it is larger than the sum of its proper divisors (37238215154).

64423232446 is a wasteful number, since it uses less digits than its factorization.

64423232446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18826283.

The product of its digits is 663552, while the sum is 40.

The spelling of 64423232446 in words is "sixty-four billion, four hundred twenty-three million, two hundred thirty-two thousand, four hundred forty-six".