44521621099 has 2 divisors, whose sum is σ = 44521621100. Its totient is φ = 44521621098.

The previous prime is 44521621057. The next prime is 44521621117. The reversal of 44521621099 is 99012612544.

44521621099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44521621099 - 2²⁷ = 44387403371 is a prime.

It is not a weakly prime, because it can be changed into another prime (44521621999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22260810549 + 22260810550.

It is an arithmetic number, because the mean of its divisors is an integer number (22260810550).

Almost surely, 2^44521621099 is an apocalyptic number.

44521621099 is a deficient number, since it is larger than the sum of its proper divisors (1).

44521621099 is an equidigital number, since it uses as much as digits as its factorization.

44521621099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 44521621099 in words is "forty-four billion, five hundred twenty-one million, six hundred twenty-one thousand, ninety-nine".