1944921764352 has 320 divisors, whose sum is σ = 5961618432000. Its totient is φ = 551949189120.

The previous prime is 1944921764329. The next prime is 1944921764381. The reversal of 1944921764352 is 2534671294491.

It is a junction number, because it is equal to n+sod(n) for n = 1944921764292 and 1944921764301.

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 31 ways as a sum of consecutive naturals, for example, 1390222149 + ... + 1390223547.

It is an arithmetic number, because the mean of its divisors is an integer number (18630057600).

Almost surely, 2^{1944921764352} is an apocalyptic number.

1944921764352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1944921764352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2980809216000).

1944921764352 is an abundant number, since it is smaller than the sum of its proper divisors (4016696667648).

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

1944921764352 is a wasteful number, since it uses less digits than its factorization.

1944921764352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2191 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 1944921764352 in words is "one trillion, nine hundred forty-four billion, nine hundred twenty-one million, seven hundred sixty-four thousand, three hundred fifty-two".