5212171386 has 24 divisors (see below), whose sum is σ = 11296208820. Its totient is φ = 1736902656.

The previous prime is 5212171351. The next prime is 5212171397. The reversal of 5212171386 is 6831712125.

It can be written as a sum of positive squares in 2 ways, for example, as 5212118025 + 53361 = 72195^2 + 231^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5212171386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28410 + ... + 105978.

Almost surely, 2^5212171386 is an apocalyptic number.

5212171386 is an abundant number, since it is smaller than the sum of its proper divisors (6084037434).

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

5212171386 is a wasteful number, since it uses less digits than its factorization.

5212171386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81310 (or 81307 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 5212171386 is about 72195.3695606581. The cubic root of 5212171386 is about 1733.8288664656.

The spelling of 5212171386 in words is "five billion, two hundred twelve million, one hundred seventy-one thousand, three hundred eighty-six".