44645454643 has 8 divisors (see below), whose sum is σ = 45519541760. Its totient is φ = 43779813120.

The previous prime is 44645454613. The next prime is 44645454661. The reversal of 44645454643 is 34645454644.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44645454643 is a prime.

It is a super-4 number, since 4×44645454643⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44645454613) 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 7 ways as a sum of consecutive naturals, for example, 2100723 + ... + 2121868.

It is an arithmetic number, because the mean of its divisors is an integer number (5689942720).

Almost surely, 2^44645454643 is an apocalyptic number.

44645454643 is a deficient number, since it is larger than the sum of its proper divisors (874087117).

44645454643 is a wasteful number, since it uses less digits than its factorization.

44645454643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222797.

The product of its digits is 11059200, while the sum is 49.

Subtracting from 44645454643 its reverse (34645454644), we obtain a palindrome (9999999999).

The spelling of 44645454643 in words is "forty-four billion, six hundred forty-five million, four hundred fifty-four thousand, six hundred forty-three".