4086640484128 has 12 divisors (see below), whose sum is σ = 8045573453190. Its totient is φ = 2043320242048.

The previous prime is 4086640484083. The next prime is 4086640484161. The reversal of 4086640484128 is 8214840466804.

It can be written as a sum of positive squares in only one way, i.e., 3247679745424 + 838960738704 = 1802132^2 + 915948^2 .

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 as a sum of consecutive naturals, namely, 63853757533 + ... + 63853757596.

Almost surely, 2^{4086640484128} is an apocalyptic number.

It is an amenable number.

4086640484128 is a deficient number, since it is larger than the sum of its proper divisors (3958932969062).

4086640484128 is a wasteful number, since it uses less digits than its factorization.

4086640484128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127707515139 (or 127707515131 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 55.

The spelling of 4086640484128 in words is "four trillion, eighty-six billion, six hundred forty million, four hundred eighty-four thousand, one hundred twenty-eight".