43791698016 has 144 divisors (see below), whose sum is σ = 136538438400. Its totient is φ = 13203336960.

The previous prime is 43791697997. The next prime is 43791698017. The reversal of 43791698016 is 61089619734.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43791698017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595701 + ... + 665163.

It is an arithmetic number, because the mean of its divisors is an integer number (948183600).

Almost surely, 2^43791698016 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 43791698016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68269219200).

43791698016 is an abundant number, since it is smaller than the sum of its proper divisors (92746740384).

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

43791698016 is a wasteful number, since it uses less digits than its factorization.

43791698016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69689 (or 69678 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 43791698016 in words is "forty-three billion, seven hundred ninety-one million, six hundred ninety-eight thousand, sixteen".