7747068852864 has 320 divisors, whose sum is σ = 25222454801280. Its totient is φ = 2340934041600.

The previous prime is 7747068852851. The next prime is 7747068852893. The reversal of 7747068852864 is 4682588607477.

7747068852864 is a `hidden beast` number, since 77 + 470 + 6 + 8 + 8 + 5 + 2 + 86 + 4 = 666.

It is a super-2 number, since 2×7747068852864² (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 a junction number, because it is equal to n+sod(n) for n = 7747068852792 and 7747068852801.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40162729 + ... + 40355159.

It is an arithmetic number, because the mean of its divisors is an integer number (78820171254).

Almost surely, 2^{7747068852864} 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 7747068852864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12611227400640).

7747068852864 is an abundant number, since it is smaller than the sum of its proper divisors (17475385948416).

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

7747068852864 is a wasteful number, since it uses less digits than its factorization.

7747068852864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192821 (or 192800 counting only the distinct ones).

The product of its (nonzero) digits is 1011548160, while the sum is 72.

The spelling of 7747068852864 in words is "seven trillion, seven hundred forty-seven billion, sixty-eight million, eight hundred fifty-two thousand, eight hundred sixty-four".