44312621345 has 8 divisors (see below), whose sum is σ = 56303095464. Its totient is φ = 33364797184.

The previous prime is 44312621341. The next prime is 44312621371. The reversal of 44312621345 is 54312621344.

It can be written as a sum of positive squares in 4 ways, for example, as 18857057041 + 25455564304 = 137321^2 + 159548^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 44312621345 - 2² = 44312621341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44312621341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260662394 + ... + 260662563.

It is an arithmetic number, because the mean of its divisors is an integer number (7037886933).

Almost surely, 2^44312621345 is an apocalyptic number.

It is an amenable number.

44312621345 is a deficient number, since it is larger than the sum of its proper divisors (11990474119).

44312621345 is a wasteful number, since it uses less digits than its factorization.

44312621345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521324979.

The product of its digits is 69120, while the sum is 35.

Subtracting 44312621345 from its reverse (54312621344), we obtain a palindrome (9999999999).

The spelling of 44312621345 in words is "forty-four billion, three hundred twelve million, six hundred twenty-one thousand, three hundred forty-five".