512240451521129 has 2 divisors, whose sum is σ = 512240451521130. Its totient is φ = 512240451521128.

The previous prime is 512240451521093. The next prime is 512240451521159. The reversal of 512240451521129 is 921125154042215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390019643677225 + 122220807843904 = 19748915^2 + 11055352^2 .

It is a cyclic number.

It is not a de Polignac number, because 512240451521129 - 2²⁴ = 512240434743913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512240451521129.

It is not a weakly prime, because it can be changed into another prime (512240451521159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256120225760564 + 256120225760565.

It is an arithmetic number, because the mean of its divisors is an integer number (256120225760565).

Almost surely, 2^{512240451521129} is an apocalyptic number.

It is an amenable number.

512240451521129 is a deficient number, since it is larger than the sum of its proper divisors (1).

512240451521129 is an equidigital number, since it uses as much as digits as its factorization.

512240451521129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 512240451521129 in words is "five hundred twelve trillion, two hundred forty billion, four hundred fifty-one million, five hundred twenty-one thousand, one hundred twenty-nine".