43734044011 has 4 divisors (see below), whose sum is σ = 49981764592. Its totient is φ = 37486323432.

The previous prime is 43734043961. The next prime is 43734044047. The reversal of 43734044011 is 11044043734.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 43734044011 - 2³¹ = 41586560363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43734044051) 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, 3123860280 + ... + 3123860293.

It is an arithmetic number, because the mean of its divisors is an integer number (12495441148).

Almost surely, 2^43734044011 is an apocalyptic number.

43734044011 is a deficient number, since it is larger than the sum of its proper divisors (6247720581).

43734044011 is an equidigital number, since it uses as much as digits as its factorization.

43734044011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247720580.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 43734044011 its reverse (11044043734), we get a palindrome (54778087745).

The spelling of 43734044011 in words is "forty-three billion, seven hundred thirty-four million, forty-four thousand, eleven".