12999487258 has 4 divisors (see below), whose sum is σ = 19499230890. Its totient is φ = 6499743628.

The previous prime is 12999487243. The next prime is 12999487261. The reversal of 12999487258 is 85278499921.

12999487258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 8276086729 + 4723400529 = 90973^2 + 68727^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12999487258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249871813 + ... + 3249871816.

Almost surely, 2^12999487258 is an apocalyptic number.

12999487258 is a deficient number, since it is larger than the sum of its proper divisors (6499743632).

12999487258 is an equidigital number, since it uses as much as digits as its factorization.

12999487258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499743631.

The product of its digits is 26127360, while the sum is 64.

The spelling of 12999487258 in words is "twelve billion, nine hundred ninety-nine million, four hundred eighty-seven thousand, two hundred fifty-eight".