261270762341 has 4 divisors (see below), whose sum is σ = 276639630732. Its totient is φ = 245901893952.

The previous prime is 261270762323. The next prime is 261270762343. The reversal of 261270762341 is 143267072162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175857777316 + 85412985025 = 419354^2 + 292255^2 .

It is a cyclic number.

It is not a de Polignac number, because 261270762341 - 2¹⁰ = 261270761317 is a prime.

It is a super-2 number, since 2×261270762341² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261270762343) 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 in 3 ways as a sum of consecutive naturals, for example, 7684434170 + ... + 7684434203.

It is an arithmetic number, because the mean of its divisors is an integer number (69159907683).

Almost surely, 2^261270762341 is an apocalyptic number.

It is an amenable number.

261270762341 is a deficient number, since it is larger than the sum of its proper divisors (15368868391).

261270762341 is a wasteful number, since it uses less digits than its factorization.

261270762341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368868390.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 261270762341 in words is "two hundred sixty-one billion, two hundred seventy million, seven hundred sixty-two thousand, three hundred forty-one".