261451013610341 has 4 divisors (see below), whose sum is σ = 261451049489184. Its totient is φ = 261450977731500.

The previous prime is 261451013610317. The next prime is 261451013610407. The reversal of 261451013610341 is 143016310154162.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 261451013610341 - 2⁶ = 261451013610277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261451013610295 and 261451013610304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261451013610041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2685185 + ... + 23024166.

It is an arithmetic number, because the mean of its divisors is an integer number (65362762372296).

Almost surely, 2^{261451013610341} is an apocalyptic number.

It is an amenable number.

261451013610341 is a deficient number, since it is larger than the sum of its proper divisors (35878843).

261451013610341 is a wasteful number, since it uses less digits than its factorization.

261451013610341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35878842.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 261451013610341 in words is "two hundred sixty-one trillion, four hundred fifty-one billion, thirteen million, six hundred ten thousand, three hundred forty-one".