1943945740928 has 32 divisors (see below), whose sum is σ = 3878581212000. Its totient is φ = 970497907456.

The previous prime is 1943945740921. The next prime is 1943945740951. The reversal of 1943945740928 is 8290475493491.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1943945740928² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1943945740921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11438468 + ... + 11607171.

It is an arithmetic number, because the mean of its divisors is an integer number (121205662875).

Almost surely, 2^{1943945740928} is an apocalyptic number.

It is an amenable number.

1943945740928 is a deficient number, since it is larger than the sum of its proper divisors (1934635471072).

1943945740928 is an equidigital number, since it uses as much as digits as its factorization.

1943945740928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23046312 (or 23046300 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 1943945740928 in words is "one trillion, nine hundred forty-three billion, nine hundred forty-five million, seven hundred forty thousand, nine hundred twenty-eight".