12500669782626 has 16 divisors (see below), whose sum is σ = 25181205319200. Its totient is φ = 4136912301888.

The previous prime is 12500669782603. The next prime is 12500669782661. The reversal of 12500669782626 is 62628796600521.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12500669782626.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7494405511 + ... + 7494407178.

It is an arithmetic number, because the mean of its divisors is an integer number (1573825332450).

Almost surely, 2^{12500669782626} is an apocalyptic number.

12500669782626 is an abundant number, since it is smaller than the sum of its proper divisors (12680535536574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12500669782626 is a wasteful number, since it uses less digits than its factorization.

12500669782626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14988812833.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 12500669782626 in words is "twelve trillion, five hundred billion, six hundred sixty-nine million, seven hundred eighty-two thousand, six hundred twenty-six".