12562661347 has 4 divisors (see below), whose sum is σ = 12603582376. Its totient is φ = 12521740320.

The previous prime is 12562661303. The next prime is 12562661429. The reversal of 12562661347 is 74316626521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74316626521 = 257 ⋅289169753.

It is a cyclic number.

It is not a de Polignac number, because 12562661347 - 2⁷ = 12562661219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12562661747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20460054 + ... + 20460667.

It is an arithmetic number, because the mean of its divisors is an integer number (3150895594).

Almost surely, 2^12562661347 is an apocalyptic number.

12562661347 is a deficient number, since it is larger than the sum of its proper divisors (40921029).

12562661347 is an equidigital number, since it uses as much as digits as its factorization.

12562661347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40921028.

The product of its digits is 362880, while the sum is 43.

The spelling of 12562661347 in words is "twelve billion, five hundred sixty-two million, six hundred sixty-one thousand, three hundred forty-seven".