351838216852 has 24 divisors (see below), whose sum is σ = 632510378024. Its totient is φ = 171123259392.

The previous prime is 351838216831. The next prime is 351838216861. The reversal of 351838216852 is 258612838153.

It can be written as a sum of positive squares in 4 ways, for example, as 117740941956 + 234097274896 = 343134^2 + 483836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 351838216852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333628 + ... + 902764.

Almost surely, 2^351838216852 is an apocalyptic number.

It is an amenable number.

351838216852 is a deficient number, since it is larger than the sum of its proper divisors (280672161172).

351838216852 is a wasteful number, since it uses less digits than its factorization.

351838216852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573355 (or 573353 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The spelling of 351838216852 in words is "three hundred fifty-one billion, eight hundred thirty-eight million, two hundred sixteen thousand, eight hundred fifty-two".