12579605534 has 4 divisors (see below), whose sum is σ = 18869408304. Its totient is φ = 6289802766.

The previous prime is 12579605503. The next prime is 12579605539. The reversal of 12579605534 is 43550697521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12579605539) 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 as a sum of consecutive naturals, namely, 3144901382 + ... + 3144901385.

It is an arithmetic number, because the mean of its divisors is an integer number (4717352076).

Almost surely, 2^12579605534 is an apocalyptic number.

12579605534 is a deficient number, since it is larger than the sum of its proper divisors (6289802770).

12579605534 is an equidigital number, since it uses as much as digits as its factorization.

12579605534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289802769.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 12579605534 in words is "twelve billion, five hundred seventy-nine million, six hundred five thousand, five hundred thirty-four".