1044921394608 has 480 divisors, whose sum is σ = 3453555386880. Its totient is φ = 266419445760.

The previous prime is 1044921394541. The next prime is 1044921394661. The reversal of 1044921394608 is 8064931294401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 204363060 + ... + 204368172.

It is an arithmetic number, because the mean of its divisors is an integer number (7194907056).

Almost surely, 2^{1044921394608} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044921394608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726777693440).

1044921394608 is an abundant number, since it is smaller than the sum of its proper divisors (2408633992272).

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

1044921394608 is a wasteful number, since it uses less digits than its factorization.

1044921394608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5258 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 1044921394608 in words is "one trillion, forty-four billion, nine hundred twenty-one million, three hundred ninety-four thousand, six hundred eight".