261701734471 has 2 divisors, whose sum is σ = 261701734472. Its totient is φ = 261701734470.

The previous prime is 261701734439. The next prime is 261701734493. The reversal of 261701734471 is 174437107162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261701734471 - 2⁵ = 261701734439 is a prime.

It is a super-3 number, since 3×261701734471³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261701734571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130850867235 + 130850867236.

It is an arithmetic number, because the mean of its divisors is an integer number (130850867236).

Almost surely, 2^261701734471 is an apocalyptic number.

261701734471 is a deficient number, since it is larger than the sum of its proper divisors (1).

261701734471 is an equidigital number, since it uses as much as digits as its factorization.

261701734471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 261701734471 in words is "two hundred sixty-one billion, seven hundred one million, seven hundred thirty-four thousand, four hundred seventy-one".