64454645446 has 4 divisors (see below), whose sum is σ = 96681968172. Its totient is φ = 32227322722.

The previous prime is 64454645407. The next prime is 64454645483.

64454645446 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 64454645393 and 64454645402.

It is a congruent number.

It is an unprimeable number.

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, 16113661360 + ... + 16113661363.

It is an arithmetic number, because the mean of its divisors is an integer number (24170492043).

Almost surely, 2^64454645446 is an apocalyptic number.

64454645446 is a deficient number, since it is larger than the sum of its proper divisors (32227322726).

64454645446 is a wasteful number, since it uses less digits than its factorization.

64454645446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32227322725.

The product of its digits is 22118400, while the sum is 52.

The spelling of 64454645446 in words is "sixty-four billion, four hundred fifty-four million, six hundred forty-five thousand, four hundred forty-six".