261280415113 has 8 divisors (see below), whose sum is σ = 261866937600. Its totient is φ = 260693989248.

The previous prime is 261280415093. The next prime is 261280415129. The reversal of 261280415113 is 311514082162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261280415113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261280445113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9750828 + ... + 9777586.

It is an arithmetic number, because the mean of its divisors is an integer number (32733367200).

Almost surely, 2^261280415113 is an apocalyptic number.

It is an amenable number.

261280415113 is a deficient number, since it is larger than the sum of its proper divisors (586522487).

261280415113 is a wasteful number, since it uses less digits than its factorization.

261280415113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48311.

The product of its (nonzero) digits is 11520, while the sum is 34.

Adding to 261280415113 its reverse (311514082162), we get a palindrome (572794497275).

The spelling of 261280415113 in words is "two hundred sixty-one billion, two hundred eighty million, four hundred fifteen thousand, one hundred thirteen".