511414350421913 has 2 divisors, whose sum is σ = 511414350421914. Its totient is φ = 511414350421912.

The previous prime is 511414350421879. The next prime is 511414350421939. The reversal of 511414350421913 is 319124053414115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511380467920729 + 33882501184 = 22613723^2 + 184072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511414350421913 is a prime.

It is a super-2 number, since 2×511414350421913² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511414350421963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255707175210956 + 255707175210957.

It is an arithmetic number, because the mean of its divisors is an integer number (255707175210957).

Almost surely, 2^{511414350421913} is an apocalyptic number.

It is an amenable number.

511414350421913 is a deficient number, since it is larger than the sum of its proper divisors (1).

511414350421913 is an equidigital number, since it uses as much as digits as its factorization.

511414350421913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 511414350421913 in words is "five hundred eleven trillion, four hundred fourteen billion, three hundred fifty million, four hundred twenty-one thousand, nine hundred thirteen".