844247061398 has 48 divisors (see below), whose sum is σ = 1403790751296. Its totient is φ = 380453149440.

The previous prime is 844247061391. The next prime is 844247061401. The reversal of 844247061398 is 893160742448.

It is a happy number.

It is a Curzon number.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6624890 + ... + 6751122.

It is an arithmetic number, because the mean of its divisors is an integer number (29245640652).

Almost surely, 2^844247061398 is an apocalyptic number.

844247061398 is a deficient number, since it is larger than the sum of its proper divisors (559543689898).

844247061398 is a wasteful number, since it uses less digits than its factorization.

844247061398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126729 (or 126716 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 844247061398 in words is "eight hundred forty-four billion, two hundred forty-seven million, sixty-one thousand, three hundred ninety-eight".