261714249701 has 2 divisors, whose sum is σ = 261714249702. Its totient is φ = 261714249700.

The previous prime is 261714249697. The next prime is 261714249707. The reversal of 261714249701 is 107942417162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253708653025 + 8005596676 = 503695^2 + 89474^2 .

It is a cyclic number.

It is not a de Polignac number, because 261714249701 - 2² = 261714249697 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261714249707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130857124850 + 130857124851.

It is an arithmetic number, because the mean of its divisors is an integer number (130857124851).

Almost surely, 2^261714249701 is an apocalyptic number.

It is an amenable number.

261714249701 is a deficient number, since it is larger than the sum of its proper divisors (1).

261714249701 is an equidigital number, since it uses as much as digits as its factorization.

261714249701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 261714249701 in words is "two hundred sixty-one billion, seven hundred fourteen million, two hundred forty-nine thousand, seven hundred one".