12416876261 has 4 divisors (see below), whose sum is σ = 12417513612. Its totient is φ = 12416238912.

The previous prime is 12416876249. The next prime is 12416876267. The reversal of 12416876261 is 16267861421.

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 2620825636 + 9796050625 = 51194^2 + 98975^2 .

It is a cyclic number.

It is not a de Polignac number, because 12416876261 - 2¹⁸ = 12416614117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12416876267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288500 + ... + 328733.

It is an arithmetic number, because the mean of its divisors is an integer number (3104378403).

Almost surely, 2^12416876261 is an apocalyptic number.

It is an amenable number.

12416876261 is a deficient number, since it is larger than the sum of its proper divisors (637351).

12416876261 is an equidigital number, since it uses as much as digits as its factorization.

12416876261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637350.

The product of its digits is 193536, while the sum is 44.

The spelling of 12416876261 in words is "twelve billion, four hundred sixteen million, eight hundred seventy-six thousand, two hundred sixty-one".