844273707920 has 40 divisors (see below), whose sum is σ = 2030623837560. Its totient is φ = 326064327680.

The previous prime is 844273707869. The next prime is 844273707931. The reversal of 844273707920 is 29707372448.

It can be written as a sum of positive squares in 4 ways, for example, as 114219665296 + 730054042624 = 337964^2 + 854432^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 181953221 + ... + 181957860.

It is an arithmetic number, because the mean of its divisors is an integer number (50765595939).

Almost surely, 2^844273707920 is an apocalyptic number.

844273707920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

844273707920 is an abundant number, since it is smaller than the sum of its proper divisors (1186350129640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

844273707920 is a wasteful number, since it uses less digits than its factorization.

844273707920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363911123 (or 363911117 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 844273707920 in words is "eight hundred forty-four billion, two hundred seventy-three million, seven hundred seven thousand, nine hundred twenty".