64454447448 has 48 divisors (see below), whose sum is σ = 175539382200. Its totient is φ = 21364784640.

The previous prime is 64454447443. The next prime is 64454447467. The reversal of 64454447448 is 84474445446.

It is a junction number, because it is equal to n+sod(n) for n = 64454447394 and 64454447403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64454447443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2487673 + ... + 2513448.

Almost surely, 2^64454447448 is an apocalyptic number.

It is an amenable number.

64454447448 is an abundant number, since it is smaller than the sum of its proper divisors (111084934752).

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

64454447448 is a wasteful number, since it uses less digits than its factorization.

64454447448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001312 (or 5001305 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 54.

The spelling of 64454447448 in words is "sixty-four billion, four hundred fifty-four million, four hundred forty-seven thousand, four hundred forty-eight".