7688622605540 has 48 divisors (see below), whose sum is σ = 17043245251200. Its totient is φ = 2905467420672.

The previous prime is 7688622605467. The next prime is 7688622605551. The reversal of 7688622605540 is 455062268867.

It is a super-2 number, since 2×7688622605540² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7688622605540.

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 15 ways as a sum of consecutive naturals, for example, 28043549 + ... + 28316388.

It is an arithmetic number, because the mean of its divisors is an integer number (355067609400).

Almost surely, 2^{7688622605540} is an apocalyptic number.

It is an amenable number.

7688622605540 is an abundant number, since it is smaller than the sum of its proper divisors (9354622645660).

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

7688622605540 is a wasteful number, since it uses less digits than its factorization.

7688622605540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56360324 (or 56360322 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 7688622605540 in words is "seven trillion, six hundred eighty-eight billion, six hundred twenty-two million, six hundred five thousand, five hundred forty".