2626961481161 has 2 divisors, whose sum is σ = 2626961481162. Its totient is φ = 2626961481160.

The previous prime is 2626961481139. The next prime is 2626961481203. The reversal of 2626961481161 is 1611841696262.

2626961481161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1841001217225 + 785960263936 = 1356835^2 + 886544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2626961481161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2626961481461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1313480740580 + 1313480740581.

It is an arithmetic number, because the mean of its divisors is an integer number (1313480740581).

Almost surely, 2^{2626961481161} is an apocalyptic number.

It is an amenable number.

2626961481161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2626961481161 is an equidigital number, since it uses as much as digits as its factorization.

2626961481161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 53.

The spelling of 2626961481161 in words is "two trillion, six hundred twenty-six billion, nine hundred sixty-one million, four hundred eighty-one thousand, one hundred sixty-one".