12405524026261 has 8 divisors (see below), whose sum is σ = 12458773301184. Its totient is φ = 12352305108000.

The previous prime is 12405524026253. The next prime is 12405524026279. The reversal of 12405524026261 is 16262042550421.

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

It is a cyclic number.

It is not a de Polignac number, because 12405524026261 - 2³ = 12405524026253 is a prime.

It is a super-2 number, since 2×12405524026261² (a number of 27 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 (12405524026201) 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, 6769905 + ... + 8404918.

It is an arithmetic number, because the mean of its divisors is an integer number (1557346662648).

Almost surely, 2^{12405524026261} is an apocalyptic number.

It is an amenable number.

12405524026261 is a deficient number, since it is larger than the sum of its proper divisors (53249274923).

12405524026261 is a wasteful number, since it uses less digits than its factorization.

12405524026261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15178331.

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 12405524026261 its reverse (16262042550421), we get a palindrome (28667566576682).

The spelling of 12405524026261 in words is "twelve trillion, four hundred five billion, five hundred twenty-four million, twenty-six thousand, two hundred sixty-one".