6489476161 has 12 divisors (see below), whose sum is σ = 7550385300. Its totient is φ = 5561374560.

The previous prime is 6489476117. The next prime is 6489476177. The reversal of 6489476161 is 1616749846.

It can be written as a sum of positive squares in 2 ways, for example, as 3142275136 + 3347201025 = 56056^2 + 57855^2 .

It is not a de Polignac number, because 6489476161 - 2²³ = 6481087553 is a prime.

It is a super-2 number, since 2×6489476161² = 84226601688374595842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6489476099 and 6489476108.

It is not an unprimeable number, because it can be changed into a prime (6489470161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381171 + ... + 397831.

It is an arithmetic number, because the mean of its divisors is an integer number (629198775).

Almost surely, 2^6489476161 is an apocalyptic number.

It is an amenable number.

6489476161 is a deficient number, since it is larger than the sum of its proper divisors (1060909139).

6489476161 is a wasteful number, since it uses less digits than its factorization.

6489476161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24624 (or 24617 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 6489476161 is about 80557.2849654207. The cubic root of 6489476161 is about 1865.2478459844.

The spelling of 6489476161 in words is "six billion, four hundred eighty-nine million, four hundred seventy-six thousand, one hundred sixty-one".