43950812449 has 4 divisors (see below), whose sum is σ = 43986002500. Its totient is φ = 43915622400.

The previous prime is 43950812441. The next prime is 43950812471. The reversal of 43950812449 is 94421805934.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94421805934 = 2 ⋅47210902967.

It can be written as a sum of positive squares in 2 ways, for example, as 8056857600 + 35893954849 = 89760^2 + 189457^2 .

It is a cyclic number.

It is not a de Polignac number, because 43950812449 - 2³ = 43950812441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43950812441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17593152 + ... + 17595649.

It is an arithmetic number, because the mean of its divisors is an integer number (10996500625).

Almost surely, 2^43950812449 is an apocalyptic number.

It is an amenable number.

43950812449 is a deficient number, since it is larger than the sum of its proper divisors (35190051).

43950812449 is a wasteful number, since it uses less digits than its factorization.

43950812449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35190050.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 43950812449 in words is "forty-three billion, nine hundred fifty million, eight hundred twelve thousand, four hundred forty-nine".