44643555534643 has 4 divisors (see below), whose sum is σ = 48077675191168. Its totient is φ = 41209435878120.

The previous prime is 44643555534631. The next prime is 44643555534661. The reversal of 44643555534643 is 34643555534644.

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 44643555534643 - 2⁹ = 44643555534131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44643555534623) 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, 1717059828243 + ... + 1717059828268.

It is an arithmetic number, because the mean of its divisors is an integer number (12019418797792).

Almost surely, 2^{44643555534643} is an apocalyptic number.

44643555534643 is a deficient number, since it is larger than the sum of its proper divisors (3434119656525).

44643555534643 is a wasteful number, since it uses less digits than its factorization.

44643555534643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434119656524.

The product of its digits is 622080000, while the sum is 61.

Subtracting from 44643555534643 its reverse (34643555534644), we obtain a palindrome (9999999999999).

The spelling of 44643555534643 in words is "forty-four trillion, six hundred forty-three billion, five hundred fifty-five million, five hundred thirty-four thousand, six hundred forty-three".