351996508303997 has 2 divisors, whose sum is σ = 351996508303998. Its totient is φ = 351996508303996.

The previous prime is 351996508303963. The next prime is 351996508304029. The reversal of 351996508303997 is 799303805699153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351995908494916 + 599809081 = 18761554^2 + 24491^2 .

It is a cyclic number.

It is not a de Polignac number, because 351996508303997 - 2¹² = 351996508299901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351996508303907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175998254151998 + 175998254151999.

It is an arithmetic number, because the mean of its divisors is an integer number (175998254151999).

Almost surely, 2^{351996508303997} is an apocalyptic number.

It is an amenable number.

351996508303997 is a deficient number, since it is larger than the sum of its proper divisors (1).

351996508303997 is an equidigital number, since it uses as much as digits as its factorization.

351996508303997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1488034800, while the sum is 77.

The spelling of 351996508303997 in words is "three hundred fifty-one trillion, nine hundred ninety-six billion, five hundred eight million, three hundred three thousand, nine hundred ninety-seven".