43636728602141 has 4 divisors (see below), whose sum is σ = 43641733396800. Its totient is φ = 43631723807484.

The previous prime is 43636728602119. The next prime is 43636728602147. The reversal of 43636728602141 is 14120682763634.

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 a de Polignac number, because none of the positive numbers 2^k-43636728602141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43636728602147) 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, 2502384251 + ... + 2502401688.

It is an arithmetic number, because the mean of its divisors is an integer number (10910433349200).

Almost surely, 2^{43636728602141} is an apocalyptic number.

It is an amenable number.

43636728602141 is a deficient number, since it is larger than the sum of its proper divisors (5004794659).

43636728602141 is an equidigital number, since it uses as much as digits as its factorization.

43636728602141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004794658.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 43636728602141 in words is "forty-three trillion, six hundred thirty-six billion, seven hundred twenty-eight million, six hundred two thousand, one hundred forty-one".