43669272373 has 2 divisors, whose sum is σ = 43669272374. Its totient is φ = 43669272372.

The previous prime is 43669272349. The next prime is 43669272401. The reversal of 43669272373 is 37327296634.

It is a happy number.

43669272373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43454737764 + 214534609 = 208458^2 + 14647^2 .

It is a cyclic number.

It is not a de Polignac number, because 43669272373 - 2⁹ = 43669271861 is a prime.

It is a super-2 number, since 2×43669272373² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43669272373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43669272473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21834636186 + 21834636187.

It is an arithmetic number, because the mean of its divisors is an integer number (21834636187).

Almost surely, 2^43669272373 is an apocalyptic number.

It is an amenable number.

43669272373 is a deficient number, since it is larger than the sum of its proper divisors (1).

43669272373 is an equidigital number, since it uses as much as digits as its factorization.

43669272373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 52.

The spelling of 43669272373 in words is "forty-three billion, six hundred sixty-nine million, two hundred seventy-two thousand, three hundred seventy-three".