12815125006 has 4 divisors (see below), whose sum is σ = 19222687512. Its totient is φ = 6407562502.

The previous prime is 12815125003. The next prime is 12815125019. The reversal of 12815125006 is 60052151821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60052151821 = 112657 ⋅533053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12815125003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203781250 + ... + 3203781253.

It is an arithmetic number, because the mean of its divisors is an integer number (4805671878).

Almost surely, 2^12815125006 is an apocalyptic number.

12815125006 is a deficient number, since it is larger than the sum of its proper divisors (6407562506).

12815125006 is an equidigital number, since it uses as much as digits as its factorization.

12815125006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407562505.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 12815125006 its reverse (60052151821), we get a palindrome (72867276827).

The spelling of 12815125006 in words is "twelve billion, eight hundred fifteen million, one hundred twenty-five thousand, six".