43640527413713 has 4 divisors (see below), whose sum is σ = 43706549392308. Its totient is φ = 43574505435120.

The previous prime is 43640527413709. The next prime is 43640527413727. The reversal of 43640527413713 is 31731472504634.

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 32451616143424 + 11188911270289 = 5696632^2 + 3344983^2 .

It is a cyclic number.

It is not a de Polignac number, because 43640527413713 - 2² = 43640527413709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43640527413013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33010988306 + ... + 33010989627.

It is an arithmetic number, because the mean of its divisors is an integer number (10926637348077).

Almost surely, 2^{43640527413713} is an apocalyptic number.

It is an amenable number.

43640527413713 is a deficient number, since it is larger than the sum of its proper divisors (66021978595).

43640527413713 is an equidigital number, since it uses as much as digits as its factorization.

43640527413713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66021978594.

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 43640527413713 in words is "forty-three trillion, six hundred forty billion, five hundred twenty-seven million, four hundred thirteen thousand, seven hundred thirteen".