43394001793 has 4 divisors (see below), whose sum is σ = 43418097988. Its totient is φ = 43369905600.

The previous prime is 43394001773. The next prime is 43394001809. The reversal of 43394001793 is 39710049334.

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 28876884624 + 14517117169 = 169932^2 + 120487^2 .

It is a cyclic number.

It is not a de Polignac number, because 43394001793 - 2²¹ = 43391904641 is a prime.

It is a super-2 number, since 2×43394001793² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43394001743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12045396 + ... + 12048997.

It is an arithmetic number, because the mean of its divisors is an integer number (10854524497).

Almost surely, 2^43394001793 is an apocalyptic number.

It is an amenable number.

43394001793 is a deficient number, since it is larger than the sum of its proper divisors (24096195).

43394001793 is a wasteful number, since it uses less digits than its factorization.

43394001793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24096194.

The product of its (nonzero) digits is 244944, while the sum is 43.

The spelling of 43394001793 in words is "forty-three billion, three hundred ninety-four million, one thousand, seven hundred ninety-three".