351356764249 has 2 divisors, whose sum is σ = 351356764250. Its totient is φ = 351356764248.

The previous prime is 351356764247. The next prime is 351356764267. The reversal of 351356764249 is 942467653153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230489288649 + 120867475600 = 480093^2 + 347660^2 .

It is a cyclic number.

It is not a de Polignac number, because 351356764249 - 2¹ = 351356764247 is a prime.

Together with 351356764247, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 351356764249.

It is not a weakly prime, because it can be changed into another prime (351356764243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175678382124 + 175678382125.

It is an arithmetic number, because the mean of its divisors is an integer number (175678382125).

Almost surely, 2^351356764249 is an apocalyptic number.

It is an amenable number.

351356764249 is a deficient number, since it is larger than the sum of its proper divisors (1).

351356764249 is an equidigital number, since it uses as much as digits as its factorization.

351356764249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 55.

The spelling of 351356764249 in words is "three hundred fifty-one billion, three hundred fifty-six million, seven hundred sixty-four thousand, two hundred forty-nine".