64424642446 has 8 divisors (see below), whose sum is σ = 96674442120. Its totient is φ = 32199828408.

The previous prime is 64424642383. The next prime is 64424642473.

64424642446 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 64424642396 and 64424642405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6239961 + ... + 6250276.

It is an arithmetic number, because the mean of its divisors is an integer number (12084305265).

Almost surely, 2^64424642446 is an apocalyptic number.

64424642446 is a deficient number, since it is larger than the sum of its proper divisors (32249799674).

64424642446 is a wasteful number, since it uses less digits than its factorization.

64424642446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12492818.

The product of its digits is 3538944, while the sum is 46.

The spelling of 64424642446 in words is "sixty-four billion, four hundred twenty-four million, six hundred forty-two thousand, four hundred forty-six".