6161711489 has 6 divisors (see below), whose sum is σ = 6545486214. Its totient is φ = 5799257600.

The previous prime is 6161711459. The next prime is 6161711509. The reversal of 6161711489 is 9841171616.

It can be written as a sum of positive squares in 3 ways, for example, as 4328587264 + 1833124225 = 65792^2 + 42815^2 .

It is not a de Polignac number, because 6161711489 - 2¹² = 6161707393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6161711459) 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 5 ways as a sum of consecutive naturals, for example, 10660112 + ... + 10660689.

It is an arithmetic number, because the mean of its divisors is an integer number (1090914369).

Almost surely, 2^6161711489 is an apocalyptic number.

It is an amenable number.

6161711489 is a deficient number, since it is larger than the sum of its proper divisors (383774725).

6161711489 is a wasteful number, since it uses less digits than its factorization.

6161711489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21320835 (or 21320818 counting only the distinct ones).

The product of its digits is 72576, while the sum is 44.

The square root of 6161711489 is about 78496.5699186914. The cubic root of 6161711489 is about 1833.3010470090.

The spelling of 6161711489 in words is "six billion, one hundred sixty-one million, seven hundred eleven thousand, four hundred eighty-nine".