44209140819 has 4 divisors (see below), whose sum is σ = 58945521096. Its totient is φ = 29472760544.

The previous prime is 44209140797. The next prime is 44209140821. The reversal of 44209140819 is 91804190244.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 44209140819 - 2⁹ = 44209140307 is a prime.

It is a super-2 number, since 2×44209140819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44209140839) 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, 7368190134 + ... + 7368190139.

It is an arithmetic number, because the mean of its divisors is an integer number (14736380274).

Almost surely, 2^44209140819 is an apocalyptic number.

44209140819 is a deficient number, since it is larger than the sum of its proper divisors (14736380277).

44209140819 is a wasteful number, since it uses less digits than its factorization.

44209140819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14736380276.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 44209140819 in words is "forty-four billion, two hundred nine million, one hundred forty thousand, eight hundred nineteen".