44091670549 has 4 divisors (see below), whose sum is σ = 44092272736. Its totient is φ = 44091068364.

The previous prime is 44091670547. The next prime is 44091670561. The reversal of 44091670549 is 94507619044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44091670549 - 2¹ = 44091670547 is a prime.

It is a super-2 number, since 2×44091670549² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44091670547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173139 + ... + 343744.

It is an arithmetic number, because the mean of its divisors is an integer number (11023068184).

Almost surely, 2^44091670549 is an apocalyptic number.

It is an amenable number.

44091670549 is a deficient number, since it is larger than the sum of its proper divisors (602187).

44091670549 is an equidigital number, since it uses as much as digits as its factorization.

44091670549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602186.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 44091670549 in words is "forty-four billion, ninety-one million, six hundred seventy thousand, five hundred forty-nine".