13270279681 has 2 divisors, whose sum is σ = 13270279682. Its totient is φ = 13270279680.

The previous prime is 13270279667. The next prime is 13270279691. The reversal of 13270279681 is 18697207231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12579641281 + 690638400 = 112159^2 + 26280^2 .

It is a cyclic number.

It is not a de Polignac number, because 13270279681 - 2¹³ = 13270271489 is a prime.

It is a super-2 number, since 2×13270279681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13270279691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6635139840 + 6635139841.

It is an arithmetic number, because the mean of its divisors is an integer number (6635139841).

Almost surely, 2^13270279681 is an apocalyptic number.

It is an amenable number.

13270279681 is a deficient number, since it is larger than the sum of its proper divisors (1).

13270279681 is an equidigital number, since it uses as much as digits as its factorization.

13270279681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 13270279681 in words is "thirteen billion, two hundred seventy million, two hundred seventy-nine thousand, six hundred eighty-one".