261060861341 has 4 divisors (see below), whose sum is σ = 298355270112. Its totient is φ = 223766452572.

The previous prime is 261060861323. The next prime is 261060861353. The reversal of 261060861341 is 143168060162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 261060861341 - 2¹⁸ = 261060599197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261060861295 and 261060861304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261060861041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18647204375 + ... + 18647204388.

It is an arithmetic number, because the mean of its divisors is an integer number (74588817528).

Almost surely, 2^261060861341 is an apocalyptic number.

It is an amenable number.

261060861341 is a deficient number, since it is larger than the sum of its proper divisors (37294408771).

261060861341 is an equidigital number, since it uses as much as digits as its factorization.

261060861341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37294408770.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 261060861341 in words is "two hundred sixty-one billion, sixty million, eight hundred sixty-one thousand, three hundred forty-one".