7647138499716 has 27 divisors (see below), whose sum is σ = 19330308704343. Its totient is φ = 2549040635880.

The previous prime is 7647138499703. The next prime is 7647138499717. The reversal of 7647138499716 is 6179948317467.

The square root of 7647138499716 is 2765346.

It is a perfect power (a square), and thus also a powerful number.

7647138499716 is a `hidden beast` number, since 7 + 6 + 471 + 3 + 84 + 9 + 9 + 71 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (7647138499717) 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 8 ways as a sum of consecutive naturals, for example, 16361631 + ... + 16822521.

Almost surely, 2^{7647138499716} is an apocalyptic number.

7647138499716 is the 2765346-th square number.

It is an amenable number.

7647138499716 is an abundant number, since it is smaller than the sum of its proper divisors (11683170204627).

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

7647138499716 is an frugal number, since it uses more digits than its factorization.

7647138499716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921792 (or 460896 counting only the distinct ones).

The product of its digits is 384072192, while the sum is 72.

The spelling of 7647138499716 in words is "seven trillion, six hundred forty-seven billion, one hundred thirty-eight million, four hundred ninety-nine thousand, seven hundred sixteen".