7847758044672 has 1920 divisors, whose sum is σ = 29167493160960. Its totient is φ = 1821529866240.

The previous prime is 7847758044649. The next prime is 7847758044719. The reversal of 7847758044672 is 2764408577487.

It is a junction number, because it is equal to n+sod(n) for n = 7847758044597 and 7847758044606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45362763178 + ... + 45362763350.

It is an arithmetic number, because the mean of its divisors is an integer number (15191402688).

Almost surely, 2^{7847758044672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7847758044672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14583746580480).

7847758044672 is an abundant number, since it is smaller than the sum of its proper divisors (21319735116288).

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

7847758044672 is a wasteful number, since it uses less digits than its factorization.

7847758044672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 590069760, while the sum is 69.

The spelling of 7847758044672 in words is "seven trillion, eight hundred forty-seven billion, seven hundred fifty-eight million, forty-four thousand, six hundred seventy-two".