12562794413 has 4 divisors (see below), whose sum is σ = 13529163228. Its totient is φ = 11596425600.

The previous prime is 12562794401. The next prime is 12562794449. The reversal of 12562794413 is 31449726521.

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 4111117924 + 8451676489 = 64118^2 + 91933^2 .

It is a cyclic number.

It is not a de Polignac number, because 12562794413 - 2¹⁴ = 12562778029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12562794313) 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, 483184388 + ... + 483184413.

It is an arithmetic number, because the mean of its divisors is an integer number (3382290807).

Almost surely, 2^12562794413 is an apocalyptic number.

12562794413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12562794413 is a deficient number, since it is larger than the sum of its proper divisors (966368815).

12562794413 is an equidigital number, since it uses as much as digits as its factorization.

12562794413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966368814.

The product of its digits is 362880, while the sum is 44.

The spelling of 12562794413 in words is "twelve billion, five hundred sixty-two million, seven hundred ninety-four thousand, four hundred thirteen".