351804671243 has 2 divisors, whose sum is σ = 351804671244. Its totient is φ = 351804671242.

The previous prime is 351804671227. The next prime is 351804671291. The reversal of 351804671243 is 342176408153.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 351804671243 - 2⁴ = 351804671227 is a prime.

It is a super-2 number, since 2×351804671243² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 351804671194 and 351804671203.

It is not a weakly prime, because it can be changed into another prime (351804611243) by changing a digit.

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 as a sum of consecutive naturals, namely, 175902335621 + 175902335622.

It is an arithmetic number, because the mean of its divisors is an integer number (175902335622).

Almost surely, 2^351804671243 is an apocalyptic number.

351804671243 is a deficient number, since it is larger than the sum of its proper divisors (1).

351804671243 is an equidigital number, since it uses as much as digits as its factorization.

351804671243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 351804671243 in words is "three hundred fifty-one billion, eight hundred four million, six hundred seventy-one thousand, two hundred forty-three".