351338336644 has 9 divisors (see below), whose sum is σ = 614844163717. Its totient is φ = 175668575584.

The previous prime is 351338336639. The next prime is 351338336669. The reversal of 351338336644 is 446633833153.

It is a happy number.

The square root of 351338336644 is 592738.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 207788282244 + 143550054400 = 455838^2 + 378880^2 .

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 1037292 + ... + 1333660.

Almost surely, 2^351338336644 is an apocalyptic number.

351338336644 is the 592738-th square number.

It is an amenable number.

351338336644 is a deficient number, since it is larger than the sum of its proper divisors (263505827073).

351338336644 is an frugal number, since it uses more digits than its factorization.

351338336644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592742 (or 296371 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 49.

Multiplying 351338336644 by its sum of digits (49), we get a square (17215578495556 = 4149166²).

The spelling of 351338336644 in words is "three hundred fifty-one billion, three hundred thirty-eight million, three hundred thirty-six thousand, six hundred forty-four".