350353221443257 has 2 divisors, whose sum is σ = 350353221443258. Its totient is φ = 350353221443256.

The previous prime is 350353221443243. The next prime is 350353221443333. The reversal of 350353221443257 is 752344122353053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328405832924841 + 21947388518416 = 18121971^2 + 4684804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-350353221443257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 350353221443257.

It is not a weakly prime, because it can be changed into another prime (350353221443857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175176610721628 + 175176610721629.

It is an arithmetic number, because the mean of its divisors is an integer number (175176610721629).

Almost surely, 2^{350353221443257} is an apocalyptic number.

It is an amenable number.

350353221443257 is a deficient number, since it is larger than the sum of its proper divisors (1).

350353221443257 is an equidigital number, since it uses as much as digits as its factorization.

350353221443257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072000, while the sum is 49.

The spelling of 350353221443257 in words is "three hundred fifty trillion, three hundred fifty-three billion, two hundred twenty-one million, four hundred forty-three thousand, two hundred fifty-seven".