8640930686116 has 9 divisors (see below), whose sum is σ = 15121638989121. Its totient is φ = 4320462403512.

The previous prime is 8640930686111. The next prime is 8640930686131. The reversal of 8640930686116 is 6116860390468.

The square root of 8640930686116 is 2939546.

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

It can be written as a sum of positive squares in only one way, i.e., 1993320422500 + 6647610263616 = 1411850^2 + 2578296^2 .

It is a super-2 number, since 2×8640930686116² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8640930686111) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5144206 + ... + 6613978.

Almost surely, 2^{8640930686116} is an apocalyptic number.

8640930686116 is the 2939546-th square number.

It is an amenable number.

8640930686116 is a deficient number, since it is larger than the sum of its proper divisors (6480708303005).

8640930686116 is an frugal number, since it uses more digits than its factorization.

8640930686116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939550 (or 1469775 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 8640930686116 in words is "eight trillion, six hundred forty billion, nine hundred thirty million, six hundred eighty-six thousand, one hundred sixteen".