44086087921 has 4 divisors (see below), whose sum is σ = 44159688000. Its totient is φ = 44012487844.

The previous prime is 44086087919. The next prime is 44086087957. The reversal of 44086087921 is 12978068044.

It is a happy number.

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 44086087921 - 2¹ = 44086087919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44086087021) 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, 36799141 + ... + 36800338.

It is an arithmetic number, because the mean of its divisors is an integer number (11039922000).

Almost surely, 2^44086087921 is an apocalyptic number.

It is an amenable number.

44086087921 is a deficient number, since it is larger than the sum of its proper divisors (73600079).

44086087921 is an equidigital number, since it uses as much as digits as its factorization.

44086087921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73600078.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 44086087921 in words is "forty-four billion, eighty-six million, eighty-seven thousand, nine hundred twenty-one".