8212688132525 has 12 divisors (see below), whose sum is σ = 10183845668724. Its totient is φ = 6570078000000.

The previous prime is 8212688132489. The next prime is 8212688132543. The reversal of 8212688132525 is 5252318862128.

It can be written as a sum of positive squares in 6 ways, for example, as 344994119044 + 7867694013481 = 587362^2 + 2804941^2 .

It is not a de Polignac number, because 8212688132525 - 2³² = 8208393165229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558875 + ... + 4091175.

It is an arithmetic number, because the mean of its divisors is an integer number (848653805727).

Almost surely, 2^{8212688132525} is an apocalyptic number.

It is an amenable number.

8212688132525 is a deficient number, since it is larger than the sum of its proper divisors (1971157536199).

8212688132525 is a wasteful number, since it uses less digits than its factorization.

8212688132525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625312 (or 3625307 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 53.

The spelling of 8212688132525 in words is "eight trillion, two hundred twelve billion, six hundred eighty-eight million, one hundred thirty-two thousand, five hundred twenty-five".