261063162413 has 2 divisors, whose sum is σ = 261063162414. Its totient is φ = 261063162412.

The previous prime is 261063162407. The next prime is 261063162419. The reversal of 261063162413 is 314261360162.

It is a balanced prime because it is at equal distance from previous prime (261063162407) and next prime (261063162419).

It can be written as a sum of positive squares in only one way, i.e., 149878928164 + 111184234249 = 387142^2 + 333443^2 .

It is a cyclic number.

It is not a de Polignac number, because 261063162413 - 2¹⁰ = 261063161389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261063162419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130531581206 + 130531581207.

It is an arithmetic number, because the mean of its divisors is an integer number (130531581207).

Almost surely, 2^261063162413 is an apocalyptic number.

It is an amenable number.

261063162413 is a deficient number, since it is larger than the sum of its proper divisors (1).

261063162413 is an equidigital number, since it uses as much as digits as its factorization.

261063162413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 261063162413 in words is "two hundred sixty-one billion, sixty-three million, one hundred sixty-two thousand, four hundred thirteen".