43743103537 has 4 divisors (see below), whose sum is σ = 49992118336. Its totient is φ = 37494088740.

The previous prime is 43743103531. The next prime is 43743103559. The reversal of 43743103537 is 73530134734.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43743103537 - 2⁷ = 43743103409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43743103537.

It is not an unprimeable number, because it can be changed into a prime (43743103531) 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, 3124507389 + ... + 3124507402.

It is an arithmetic number, because the mean of its divisors is an integer number (12498029584).

Almost surely, 2^43743103537 is an apocalyptic number.

It is an amenable number.

43743103537 is a deficient number, since it is larger than the sum of its proper divisors (6249014799).

43743103537 is an equidigital number, since it uses as much as digits as its factorization.

43743103537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6249014798.

The product of its (nonzero) digits is 317520, while the sum is 40.

The spelling of 43743103537 in words is "forty-three billion, seven hundred forty-three million, one hundred three thousand, five hundred thirty-seven".