44537523545 has 4 divisors (see below), whose sum is σ = 53445028260. Its totient is φ = 35630018832.

The previous prime is 44537523533. The next prime is 44537523577. The reversal of 44537523545 is 54532573544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12046379536 + 32491144009 = 109756^2 + 180253^2 .

It is a cyclic number.

It is not a de Polignac number, because 44537523545 - 2³⁴ = 27357654361 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44537523545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4453752350 + ... + 4453752359.

It is an arithmetic number, because the mean of its divisors is an integer number (13361257065).

Almost surely, 2^44537523545 is an apocalyptic number.

It is an amenable number.

44537523545 is a deficient number, since it is larger than the sum of its proper divisors (8907504715).

44537523545 is an equidigital number, since it uses as much as digits as its factorization.

44537523545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8907504714.

The product of its digits is 5040000, while the sum is 47.

The spelling of 44537523545 in words is "forty-four billion, five hundred thirty-seven million, five hundred twenty-three thousand, five hundred forty-five".