12620534506999 has 4 divisors (see below), whose sum is σ = 12743063968336. Its totient is φ = 12498005045664.

The previous prime is 12620534506973. The next prime is 12620534507017. The reversal of 12620534506999 is 99960543502621.

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 12620534506999 - 2⁵ = 12620534506967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620534506939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61264730514 + ... + 61264730719.

It is an arithmetic number, because the mean of its divisors is an integer number (3185765992084).

Almost surely, 2^{12620534506999} is an apocalyptic number.

12620534506999 is a deficient number, since it is larger than the sum of its proper divisors (122529461337).

12620534506999 is a wasteful number, since it uses less digits than its factorization.

12620534506999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122529461336.

The product of its (nonzero) digits is 31492800, while the sum is 61.

The spelling of 12620534506999 in words is "twelve trillion, six hundred twenty billion, five hundred thirty-four million, five hundred six thousand, nine hundred ninety-nine".