515311313189 has 2 divisors, whose sum is σ = 515311313190. Its totient is φ = 515311313188.

The previous prime is 515311313141. The next prime is 515311313201. The reversal of 515311313189 is 981313113515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331148457025 + 184162856164 = 575455^2 + 429142^2 .

It is a cyclic number.

It is not a de Polignac number, because 515311313189 - 2³² = 511016345893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515311313989) 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, 257655656594 + 257655656595.

It is an arithmetic number, because the mean of its divisors is an integer number (257655656595).

Almost surely, 2^515311313189 is an apocalyptic number.

It is an amenable number.

515311313189 is a deficient number, since it is larger than the sum of its proper divisors (1).

515311313189 is an equidigital number, since it uses as much as digits as its factorization.

515311313189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 41.

The spelling of 515311313189 in words is "five hundred fifteen billion, three hundred eleven million, three hundred thirteen thousand, one hundred eighty-nine".