351807818228 has 12 divisors (see below), whose sum is σ = 622010730852. Its totient is φ = 174090466560.

The previous prime is 351807818189. The next prime is 351807818237. The reversal of 351807818228 is 822818708153.

It can be written as a sum of positive squares in 2 ways, for example, as 270210753124 + 81597065104 = 519818^2 + 285652^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 351807818228.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 453360203 + ... + 453360978.

It is an arithmetic number, because the mean of its divisors is an integer number (51834227571).

Almost surely, 2^351807818228 is an apocalyptic number.

It is an amenable number.

351807818228 is a deficient number, since it is larger than the sum of its proper divisors (270202912624).

351807818228 is a wasteful number, since it uses less digits than its factorization.

351807818228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906721282 (or 906721280 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 53.

The spelling of 351807818228 in words is "three hundred fifty-one billion, eight hundred seven million, eight hundred eighteen thousand, two hundred twenty-eight".