8748066681 has 6 divisors (see below), whose sum is σ = 12636096330. Its totient is φ = 5832044448.

The previous prime is 8748066667. The next prime is 8748066707. The reversal of 8748066681 is 1866608478.

It can be written as a sum of positive squares in only one way, i.e., 5038160400 + 3709906281 = 70980^2 + 60909^2 .

It is not a de Polignac number, because 8748066681 - 2¹⁰ = 8748065657 is a prime.

It is a super-2 number, since 2×8748066681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8748066611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 486003696 + ... + 486003713.

It is an arithmetic number, because the mean of its divisors is an integer number (2106016055).

Almost surely, 2^8748066681 is an apocalyptic number.

It is an amenable number.

8748066681 is a deficient number, since it is larger than the sum of its proper divisors (3888029649).

8748066681 is a wasteful number, since it uses less digits than its factorization.

8748066681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972007415 (or 972007412 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 8748066681 is about 93531.1000737188. The cubic root of 8748066681 is about 2060.4908718838.

The spelling of 8748066681 in words is "eight billion, seven hundred forty-eight million, sixty-six thousand, six hundred eighty-one".