351318678241 has 4 divisors (see below), whose sum is σ = 351321132484. Its totient is φ = 351316224000.

The previous prime is 351318678239. The next prime is 351318678247. The reversal of 351318678241 is 142876813153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6754374225 + 344564304016 = 82185^2 + 586996^2 .

It is a cyclic number.

It is not a de Polignac number, because 351318678241 - 2¹ = 351318678239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351318678247) by changing a digit.

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, 998160 + ... + 1303441.

It is an arithmetic number, because the mean of its divisors is an integer number (87830283121).

Almost surely, 2^351318678241 is an apocalyptic number.

It is an amenable number.

351318678241 is a deficient number, since it is larger than the sum of its proper divisors (2454243).

351318678241 is a wasteful number, since it uses less digits than its factorization.

351318678241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454242.

The product of its digits is 967680, while the sum is 49.

The spelling of 351318678241 in words is "three hundred fifty-one billion, three hundred eighteen million, six hundred seventy-eight thousand, two hundred forty-one".