351330421252 has 6 divisors (see below), whose sum is σ = 614828237198. Its totient is φ = 175665210624.

The previous prime is 351330421237. The next prime is 351330421291. The reversal of 351330421252 is 252124033153.

It can be written as a sum of positive squares in only one way, i.e., 269749351876 + 81581069376 = 519374^2 + 285624^2 .

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 as a sum of consecutive naturals, namely, 43916302653 + ... + 43916302660.

Almost surely, 2^351330421252 is an apocalyptic number.

It is an amenable number.

351330421252 is a deficient number, since it is larger than the sum of its proper divisors (263497815946).

351330421252 is a wasteful number, since it uses less digits than its factorization.

351330421252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87832605317 (or 87832605315 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 351330421252 in words is "three hundred fifty-one billion, three hundred thirty million, four hundred twenty-one thousand, two hundred fifty-two".