61443336818448 has 120 divisors (see below), whose sum is σ = 192042034370368. Its totient is φ = 18905642082432.

The previous prime is 61443336818429. The next prime is 61443336818459. The reversal of 61443336818448 is 84481863334416.

61443336818448 is a `hidden beast` number, since 6 + 1 + 4 + 433 + 3 + 6 + 81 + 84 + 48 = 666.

61443336818448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 607769740 + ... + 607870827.

Almost surely, 2^{61443336818448} is an apocalyptic number.

It is an amenable number.

61443336818448 is an abundant number, since it is smaller than the sum of its proper divisors (130598697551920).

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

61443336818448 is a wasteful number, since it uses less digits than its factorization.

61443336818448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215640603 (or 1215640585 counting only the distinct ones).

The product of its digits is 127401984, while the sum is 63.

The spelling of 61443336818448 in words is "sixty-one trillion, four hundred forty-three billion, three hundred thirty-six million, eight hundred eighteen thousand, four hundred forty-eight".