7839266417161 has 27 divisors (see below), whose sum is σ = 8013351181927. Its totient is φ = 7668953185760.

The previous prime is 7839266417159. The next prime is 7839266417197. The reversal of 7839266417161 is 1617146629387.

It is a happy number.

The square root of 7839266417161 is 2799869.

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., 4604822433225 + 3234443983936 = 2145885^2 + 1798456^2 .

It is not a de Polignac number, because 7839266417161 - 2¹ = 7839266417159 is a prime.

It is a super-2 number, since 2×7839266417161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7839266417161.

It is not an unprimeable number, because it can be changed into a prime (7839266417141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 41043279576 + ... + 41043279766.

Almost surely, 2^{7839266417161} is an apocalyptic number.

7839266417161 is the 2799869-th square number.

7839266417161 is the 1399935-th centered octagonal number.

It is an amenable number.

7839266417161 is a deficient number, since it is larger than the sum of its proper divisors (174084764766).

7839266417161 is an frugal number, since it uses more digits than its factorization.

7839266417161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 435 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The spelling of 7839266417161 in words is "seven trillion, eight hundred thirty-nine billion, two hundred sixty-six million, four hundred seventeen thousand, one hundred sixty-one".