844247061399 has 32 divisors (see below), whose sum is σ = 1362656894976. Its totient is φ = 453878714880.

The previous prime is 844247061391. The next prime is 844247061401. The reversal of 844247061399 is 993160742448.

It is not a de Polignac number, because 844247061399 - 2³ = 844247061391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844247061391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513994 + ... + 1397384.

It is an arithmetic number, because the mean of its divisors is an integer number (42583027968).

Almost surely, 2^844247061399 is an apocalyptic number.

844247061399 is a deficient number, since it is larger than the sum of its proper divisors (518409833577).

844247061399 is a wasteful number, since it uses less digits than its factorization.

844247061399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886095.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 844247061399 in words is "eight hundred forty-four billion, two hundred forty-seven million, sixty-one thousand, three hundred ninety-nine".