64426944962446 has 32 divisors (see below), whose sum is σ = 106270595544960. Its totient is φ = 29051244280800.

The previous prime is 64426944962441. The next prime is 64426944962537.

64426944962446 is nontrivially palindromic in base 10.

64426944962446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64426944962441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21179361 + ... + 24029548.

It is an arithmetic number, because the mean of its divisors is an integer number (3320956110780).

Almost surely, 2^{64426944962446} is an apocalyptic number.

64426944962446 is a deficient number, since it is larger than the sum of its proper divisors (41843650582514).

64426944962446 is a wasteful number, since it uses less digits than its factorization.

64426944962446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45209440.

The product of its digits is 1719926784, while the sum is 70.

The spelling of 64426944962446 in words is "sixty-four trillion, four hundred twenty-six billion, nine hundred forty-four million, nine hundred sixty-two thousand, four hundred forty-six".