44161422509 has 4 divisors (see below), whose sum is σ = 44616695004. Its totient is φ = 43706150016.

The previous prime is 44161422499. The next prime is 44161422541. The reversal of 44161422509 is 90522416144.

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 23677515625 + 20483906884 = 153875^2 + 143122^2 .

It is a cyclic number.

It is not a de Polignac number, because 44161422509 - 2¹⁶ = 44161356973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44161425509) 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 3 ways as a sum of consecutive naturals, for example, 227636102 + ... + 227636295.

It is an arithmetic number, because the mean of its divisors is an integer number (11154173751).

Almost surely, 2^44161422509 is an apocalyptic number.

It is an amenable number.

44161422509 is a deficient number, since it is larger than the sum of its proper divisors (455272495).

44161422509 is an equidigital number, since it uses as much as digits as its factorization.

44161422509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455272494.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 44161422509 in words is "forty-four billion, one hundred sixty-one million, four hundred twenty-two thousand, five hundred nine".