511005340346 has 4 divisors (see below), whose sum is σ = 766508010522. Its totient is φ = 255502670172.

The previous prime is 511005340343. The next prime is 511005340357. The reversal of 511005340346 is 643043500115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643043500115 = 5 ⋅128608700023.

It can be written as a sum of positive squares in only one way, i.e., 433576156225 + 77429184121 = 658465^2 + 278261^2 .

It is a super-2 number, since 2×511005340346² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511005340343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127751335085 + ... + 127751335088.

Almost surely, 2^511005340346 is an apocalyptic number.

511005340346 is a deficient number, since it is larger than the sum of its proper divisors (255502670176).

511005340346 is a wasteful number, since it uses less digits than its factorization.

511005340346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255502670175.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 511005340346 in words is "five hundred eleven billion, five million, three hundred forty thousand, three hundred forty-six".