521734460334019 has 2 divisors, whose sum is σ = 521734460334020. Its totient is φ = 521734460334018.

The previous prime is 521734460334007. The next prime is 521734460334067. The reversal of 521734460334019 is 910433064437125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 521734460334019 - 2⁵ = 521734460333987 is a prime.

It is a super-2 number, since 2×521734460334019² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (521734460334119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260867230167009 + 260867230167010.

It is an arithmetic number, because the mean of its divisors is an integer number (260867230167010).

Almost surely, 2^{521734460334019} is an apocalyptic number.

521734460334019 is a deficient number, since it is larger than the sum of its proper divisors (1).

521734460334019 is an equidigital number, since it uses as much as digits as its factorization.

521734460334019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 521734460334019 in words is "five hundred twenty-one trillion, seven hundred thirty-four billion, four hundred sixty million, three hundred thirty-four thousand, nineteen".