7687521325028 has 6 divisors (see below), whose sum is σ = 13453162318806. Its totient is φ = 3843760662512.

The previous prime is 7687521325021. The next prime is 7687521325031. The reversal of 7687521325028 is 8205231257867.

It can be written as a sum of positive squares in only one way, i.e., 4159405249444 + 3528116075584 = 2039462^2 + 1878328^2 .

It is not an unprimeable number, because it can be changed into a prime (7687521325021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960940165625 + ... + 960940165632.

It is an arithmetic number, because the mean of its divisors is an integer number (2242193719801).

Almost surely, 2^{7687521325028} is an apocalyptic number.

It is an amenable number.

7687521325028 is a deficient number, since it is larger than the sum of its proper divisors (5765640993778).

7687521325028 is a wasteful number, since it uses less digits than its factorization.

7687521325028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921880331261 (or 1921880331259 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 7687521325028 in words is "seven trillion, six hundred eighty-seven billion, five hundred twenty-one million, three hundred twenty-five thousand, twenty-eight".