6486852681 has 63 divisors (see below), whose sum is σ = 10330453431. Its totient is φ = 4070864304.

The previous prime is 6486852653. The next prime is 6486852731. The reversal of 6486852681 is 1862586846.

The square root of 6486852681 is 80541.

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

6486852681 is a `hidden beast` number, since 6 + 486 + 85 + 2 + 6 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1901396025 + 4585456656 = 43605^2 + 67716^2 .

It is not a de Polignac number, because 6486852681 - 2¹³ = 6486844489 is a prime.

It is a super-2 number, since 2×6486852681² = 84158515409993775522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6486852601) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 41317455 + ... + 41317611.

Almost surely, 2^6486852681 is an apocalyptic number.

6486852681 is the 80541-st square number.

6486852681 is the 40271-st centered octagonal number.

It is an amenable number.

6486852681 is a deficient number, since it is larger than the sum of its proper divisors (3843600750).

6486852681 is an frugal number, since it uses more digits than its factorization.

6486852681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 179 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The cubic root of 6486852681 is about 1864.9964594901.

The spelling of 6486852681 in words is "six billion, four hundred eighty-six million, eight hundred fifty-two thousand, six hundred eighty-one".