12514405679 has 4 divisors (see below), whose sum is σ = 12518497080. Its totient is φ = 12510314280.

The previous prime is 12514405661. The next prime is 12514405693. The reversal of 12514405679 is 97650441521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12514405679 - 2¹² = 12514401583 is a prime.

It is a super-2 number, since 2×12514405679² (a number of 21 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 (12514305679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2041109 + ... + 2047230.

It is an arithmetic number, because the mean of its divisors is an integer number (3129624270).

Almost surely, 2^12514405679 is an apocalyptic number.

12514405679 is a deficient number, since it is larger than the sum of its proper divisors (4091401).

12514405679 is an equidigital number, since it uses as much as digits as its factorization.

12514405679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091400.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 12514405679 in words is "twelve billion, five hundred fourteen million, four hundred five thousand, six hundred seventy-nine".