7487007775866 has 96 divisors (see below), whose sum is σ = 16407810619200. Its totient is φ = 2467224587520.

The previous prime is 7487007775859. The next prime is 7487007775867. The reversal of 7487007775866 is 6685777007847.

7487007775866 is a `hidden beast` number, since 7 + 487 + 0 + 0 + 77 + 75 + 8 + 6 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7487007775794 and 7487007775803.

It is not an unprimeable number, because it can be changed into a prime (7487007775867) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1454632705 + ... + 1454637851.

It is an arithmetic number, because the mean of its divisors is an integer number (170914693950).

Almost surely, 2^{7487007775866} is an apocalyptic number.

7487007775866 is an abundant number, since it is smaller than the sum of its proper divisors (8920802843334).

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

7487007775866 is a wasteful number, since it uses less digits than its factorization.

7487007775866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644 (or 7641 counting only the distinct ones).

The product of its (nonzero) digits is 774466560, while the sum is 72.

The spelling of 7487007775866 in words is "seven trillion, four hundred eighty-seven billion, seven million, seven hundred seventy-five thousand, eight hundred sixty-six".