43907660045 has 4 divisors (see below), whose sum is σ = 52689192060. Its totient is φ = 35126128032.

The previous prime is 43907660029. The next prime is 43907660059. The reversal of 43907660045 is 54006670934.

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 23319427849 + 20588232196 = 152707^2 + 143486^2 .

It is a cyclic number.

It is not a de Polignac number, because 43907660045 - 2⁴ = 43907660029 is a prime.

It is a super-2 number, since 2×43907660045² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43907659978 and 43907660005.

It is a congruent number.

It is an unprimeable number.

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, 4390766000 + ... + 4390766009.

It is an arithmetic number, because the mean of its divisors is an integer number (13172298015).

Almost surely, 2^43907660045 is an apocalyptic number.

It is an amenable number.

43907660045 is a deficient number, since it is larger than the sum of its proper divisors (8781532015).

43907660045 is an equidigital number, since it uses as much as digits as its factorization.

43907660045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781532014.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 43907660045 in words is "forty-three billion, nine hundred seven million, six hundred sixty thousand, forty-five".