43754020063813 has 4 divisors (see below), whose sum is σ = 43754409665100. Its totient is φ = 43753630462528.

The previous prime is 43754020063799. The next prime is 43754020063849. The reversal of 43754020063813 is 31836002045734.

43754020063813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17160123980484 + 26593896083329 = 4142478^2 + 5156927^2 .

It is a cyclic number.

It is not a de Polignac number, because 43754020063813 - 2⁵ = 43754020063781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43754020060813) 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 3 ways as a sum of consecutive naturals, for example, 194632138 + ... + 194856811.

It is an arithmetic number, because the mean of its divisors is an integer number (10938602416275).

Almost surely, 2^{43754020063813} is an apocalyptic number.

It is an amenable number.

43754020063813 is a deficient number, since it is larger than the sum of its proper divisors (389601287).

43754020063813 is a wasteful number, since it uses less digits than its factorization.

43754020063813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389601286.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 43754020063813 in words is "forty-three trillion, seven hundred fifty-four billion, twenty million, sixty-three thousand, eight hundred thirteen".