845851361280 has 256 divisors, whose sum is σ = 2800064138400. Its totient is φ = 217778749440.

The previous prime is 845851361269. The next prime is 845851361297. The reversal of 845851361280 is 82163158548.

It is a tau number, because it is divible by the number of its divisors (256).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14224410 + ... + 14283750.

Almost surely, 2^845851361280 is an apocalyptic number.

845851361280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845851361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400032069200).

845851361280 is an abundant number, since it is smaller than the sum of its proper divisors (1954212777120).

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

845851361280 is an equidigital number, since it uses as much as digits as its factorization.

845851361280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59408 (or 59380 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 845851361280 in words is "eight hundred forty-five billion, eight hundred fifty-one million, three hundred sixty-one thousand, two hundred eighty".