12500063172026 has 4 divisors (see below), whose sum is σ = 18750094758042. Its totient is φ = 6250031586012.

The previous prime is 12500063172011. The next prime is 12500063172061. The reversal of 12500063172026 is 62027136000521.

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., 12491269421401 + 8793750625 = 3534299^2 + 93775^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125015793005 + ... + 3125015793008.

Almost surely, 2^{12500063172026} is an apocalyptic number.

12500063172026 is a deficient number, since it is larger than the sum of its proper divisors (6250031586016).

12500063172026 is an equidigital number, since it uses as much as digits as its factorization.

12500063172026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250031586015.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 12500063172026 its reverse (62027136000521), we get a palindrome (74527199172547).

The spelling of 12500063172026 in words is "twelve trillion, five hundred billion, sixty-three million, one hundred seventy-two thousand, twenty-six".