64445854446 has 16 divisors (see below), whose sum is σ = 143213010000. Its totient is φ = 21481951464.

The previous prime is 64445854409. The next prime is 64445854477.

64445854446 is a `hidden beast` number, since 6 + 4 + 4 + 4 + 58 + 544 + 46 = 666.

64445854446 is nontrivially palindromic in base 10.

64445854446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1193441749 = 64445854446 / (6 + 4 + 4 + 4 + 5 + 8 + 5 + 4 + 4 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 64445854392 and 64445854401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596720821 + ... + 596720928.

It is an arithmetic number, because the mean of its divisors is an integer number (8950813125).

Almost surely, 2^64445854446 is an apocalyptic number.

64445854446 is an abundant number, since it is smaller than the sum of its proper divisors (78767155554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64445854446 is a wasteful number, since it uses less digits than its factorization.

64445854446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193441760 (or 1193441754 counting only the distinct ones).

The product of its digits is 29491200, while the sum is 54.

The spelling of 64445854446 in words is "sixty-four billion, four hundred forty-five million, eight hundred fifty-four thousand, four hundred forty-six".