43964790912 has 192 divisors, whose sum is σ = 145728460800. Its totient is φ = 12462170112.

The previous prime is 43964790889. The next prime is 43964790913. The reversal of 43964790912 is 21909746934.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (43964790913) 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 23 ways as a sum of consecutive naturals, for example, 1002664 + ... + 1045592.

It is an arithmetic number, because the mean of its divisors is an integer number (759002400).

Almost surely, 2^43964790912 is an apocalyptic number.

43964790912 is a gapful number since it is divisible by the number (42) 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 43964790912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72864230400).

43964790912 is an abundant number, since it is smaller than the sum of its proper divisors (101763669888).

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

43964790912 is a wasteful number, since it uses less digits than its factorization.

43964790912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43083 (or 43068 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 43964790912 in words is "forty-three billion, nine hundred sixty-four million, seven hundred ninety thousand, nine hundred twelve".