44312151321209 has 4 divisors (see below), whose sum is σ = 44332174889316. Its totient is φ = 44292127753104.

The previous prime is 44312151321187. The next prime is 44312151321323. The reversal of 44312151321209 is 90212315121344.

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 38017336272400 + 6294815048809 = 6165820^2 + 2508947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44312151321209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44312151324209) 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, 10011780734 + ... + 10011785159.

It is an arithmetic number, because the mean of its divisors is an integer number (11083043722329).

Almost surely, 2^{44312151321209} is an apocalyptic number.

It is an amenable number.

44312151321209 is a deficient number, since it is larger than the sum of its proper divisors (20023568107).

44312151321209 is a wasteful number, since it uses less digits than its factorization.

44312151321209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20023568106.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 44312151321209 in words is "forty-four trillion, three hundred twelve billion, one hundred fifty-one million, three hundred twenty-one thousand, two hundred nine".