7663539962880 has 440 divisors, whose sum is σ = 28408797319320. Its totient is φ = 1973138227200.

The previous prime is 7663539962873. The next prime is 7663539962899. The reversal of 7663539962880 is 882699353667.

7663539962880 is a `hidden beast` number, since 7 + 6 + 6 + 3 + 539 + 9 + 6 + 2 + 8 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 127329076224 + 7536210886656 = 356832^2 + 2745216^2 .

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 = 7663539962799 and 7663539962808.

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, 11708280 + ... + 12345480.

It is an arithmetic number, because the mean of its divisors is an integer number (64565448453).

Almost surely, 2^{7663539962880} 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 7663539962880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14204398659660).

7663539962880 is an abundant number, since it is smaller than the sum of its proper divisors (20745257356440).

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

7663539962880 is a wasteful number, since it uses less digits than its factorization.

7663539962880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637267 (or 637240 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 72.

The spelling of 7663539962880 in words is "seven trillion, six hundred sixty-three billion, five hundred thirty-nine million, nine hundred sixty-two thousand, eight hundred eighty".