12625984534 has 4 divisors (see below), whose sum is σ = 18938976804. Its totient is φ = 6312992266.

The previous prime is 12625984529. The next prime is 12625984549. The reversal of 12625984534 is 43548952621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43548952621 = 47903 ⋅909107.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3156496132 + ... + 3156496135.

It is an arithmetic number, because the mean of its divisors is an integer number (4734744201).

Almost surely, 2^12625984534 is an apocalyptic number.

12625984534 is a deficient number, since it is larger than the sum of its proper divisors (6312992270).

12625984534 is an equidigital number, since it uses as much as digits as its factorization.

12625984534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312992269.

The product of its digits is 2073600, while the sum is 49.

The spelling of 12625984534 in words is "twelve billion, six hundred twenty-five million, nine hundred eighty-four thousand, five hundred thirty-four".