12532639679 has 4 divisors (see below), whose sum is σ = 14323016784. Its totient is φ = 10742262576.

The previous prime is 12532639673. The next prime is 12532639703. The reversal of 12532639679 is 97693623521.

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 12532639679 - 2¹⁶ = 12532574143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12532639679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12532639673) 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, 895188542 + ... + 895188555.

It is an arithmetic number, because the mean of its divisors is an integer number (3580754196).

Almost surely, 2^12532639679 is an apocalyptic number.

12532639679 is a deficient number, since it is larger than the sum of its proper divisors (1790377105).

12532639679 is an equidigital number, since it uses as much as digits as its factorization.

12532639679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790377104.

The product of its digits is 3674160, while the sum is 53.

The spelling of 12532639679 in words is "twelve billion, five hundred thirty-two million, six hundred thirty-nine thousand, six hundred seventy-nine".