7798845618720 has 1152 divisors, whose sum is σ = 31217753548800. Its totient is φ = 1755758592000.

The previous prime is 7798845618713. The next prime is 7798845618721. The reversal of 7798845618720 is 278165488977.

7798845618720 is a `hidden beast` number, since 7 + 7 + 98 + 8 + 456 + 1 + 87 + 2 + 0 = 666.

It is a super-2 number, since 2×7798845618720² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (7798845618721) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7729281576 + ... + 7729282584.

It is an arithmetic number, because the mean of its divisors is an integer number (27098744400).

Almost surely, 2^{7798845618720} 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 7798845618720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15608876774400).

7798845618720 is an abundant number, since it is smaller than the sum of its proper divisors (23418907930080).

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

7798845618720 is a wasteful number, since it uses less digits than its factorization.

7798845618720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 379330560, while the sum is 72.

The spelling of 7798845618720 in words is "seven trillion, seven hundred ninety-eight billion, eight hundred forty-five million, six hundred eighteen thousand, seven hundred twenty".