847449126720 has 336 divisors, whose sum is σ = 3446156338560. Its totient is φ = 187023126528.

The previous prime is 847449126707. The next prime is 847449126763. The reversal of 847449126720 is 27621944748.

847449126720 is a `hidden beast` number, since 8 + 4 + 7 + 449 + 126 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140122 + ... + 1309401.

Almost surely, 2^847449126720 is an apocalyptic number.

847449126720 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 847449126720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723078169280).

847449126720 is an abundant number, since it is smaller than the sum of its proper divisors (2598707211840).

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

847449126720 is a wasteful number, since it uses less digits than its factorization.

847449126720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449582 (or 1449569 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

It can be divided in two parts, 847449 and 126720, that added together give a square (974169 = 987²).

The spelling of 847449126720 in words is "eight hundred forty-seven billion, four hundred forty-nine million, one hundred twenty-six thousand, seven hundred twenty".