7788704940720 has 2400 divisors, whose sum is σ = 32772446429184. Its totient is φ = 1706012098560.

The previous prime is 7788704940719. The next prime is 7788704940761. The reversal of 7788704940720 is 270494078877.

7788704940720 is a `hidden beast` number, since 7 + 7 + 8 + 8 + 70 + 494 + 0 + 72 + 0 = 666.

It is a super-2 number, since 2×7788704940720² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 61328385297 + ... + 61328385423.

Almost surely, 2^{7788704940720} 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 7788704940720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16386223214592).

7788704940720 is an abundant number, since it is smaller than the sum of its proper divisors (24983741488464).

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

7788704940720 is a wasteful number, since it uses less digits than its factorization.

7788704940720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 63.

The spelling of 7788704940720 in words is "seven trillion, seven hundred eighty-eight billion, seven hundred four million, nine hundred forty thousand, seven hundred twenty".