844447047890 has 16 divisors (see below), whose sum is σ = 1525375732608. Its totient is φ = 336585253296.

The previous prime is 844447047889. The next prime is 844447047923. The reversal of 844447047890 is 98740744448.

844447047890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149192762 + ... + 149198421.

It is an arithmetic number, because the mean of its divisors is an integer number (95335983288).

Almost surely, 2^844447047890 is an apocalyptic number.

844447047890 is a deficient number, since it is larger than the sum of its proper divisors (680928684718).

844447047890 is a wasteful number, since it uses less digits than its factorization.

844447047890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298391473.

The product of its (nonzero) digits is 28901376, while the sum is 59.

The spelling of 844447047890 in words is "eight hundred forty-four billion, four hundred forty-seven million, forty-seven thousand, eight hundred ninety".