43073721761042 has 16 divisors (see below), whose sum is σ = 73842551420352. Its totient is φ = 18459695082960.

The previous prime is 43073721760939. The next prime is 43073721761047. The reversal of 43073721761042 is 24016712737034.

43073721761042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×43073721761042³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (43073721761047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38714048 + ... + 39811115.

It is an arithmetic number, because the mean of its divisors is an integer number (4615159463772).

Almost surely, 2^{43073721761042} is an apocalyptic number.

43073721761042 is a deficient number, since it is larger than the sum of its proper divisors (30768829659310).

43073721761042 is a wasteful number, since it uses less digits than its factorization.

43073721761042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78564353.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 43073721761042 in words is "forty-three trillion, seventy-three billion, seven hundred twenty-one million, seven hundred sixty-one thousand, forty-two".