44664126545 has 8 divisors (see below), whose sum is σ = 53651816424. Its totient is φ = 35694724864.

The previous prime is 44664126449. The next prime is 44664126547. The reversal of 44664126545 is 54562146644.

It can be written as a sum of positive squares in 4 ways, for example, as 2080089664 + 42584036881 = 45608^2 + 206359^2 .

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 44664126545 - 2¹² = 44664122449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44664126545.

It is not an unprimeable number, because it can be changed into a prime (44664126547) 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, 4566674 + ... + 4576443.

It is an arithmetic number, because the mean of its divisors is an integer number (6706477053).

Almost surely, 2^44664126545 is an apocalyptic number.

It is an amenable number.

44664126545 is a deficient number, since it is larger than the sum of its proper divisors (8987689879).

44664126545 is an equidigital number, since it uses as much as digits as its factorization.

44664126545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9144099.

The product of its digits is 2764800, while the sum is 47.

The spelling of 44664126545 in words is "forty-four billion, six hundred sixty-four million, one hundred twenty-six thousand, five hundred forty-five".