12715205128 has 16 divisors (see below), whose sum is σ = 23843165760. Its totient is φ = 6357027600.

The previous prime is 12715205119. The next prime is 12715205159. The reversal of 12715205128 is 82150251721.

It is a junction number, because it is equal to n+sod(n) for n = 12715205093 and 12715205102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30733 + ... + 162403.

It is an arithmetic number, because the mean of its divisors is an integer number (1490197860).

Almost surely, 2^12715205128 is an apocalyptic number.

It is an amenable number.

12715205128 is a deficient number, since it is larger than the sum of its proper divisors (11127960632).

12715205128 is a wasteful number, since it uses less digits than its factorization.

12715205128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143748 (or 143744 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

Adding to 12715205128 its reverse (82150251721), we get a palindrome (94865456849).

The spelling of 12715205128 in words is "twelve billion, seven hundred fifteen million, two hundred five thousand, one hundred twenty-eight".