529199749129109 has 2 divisors, whose sum is σ = 529199749129110. Its totient is φ = 529199749129108.

The previous prime is 529199749129087. The next prime is 529199749129127. The reversal of 529199749129109 is 901921947991925.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412829657604100 + 116370091525009 = 20318210^2 + 10787497^2 .

It is a cyclic number.

It is not a de Polignac number, because 529199749129109 - 2²⁰ = 529199748080533 is a prime.

It is a super-2 number, since 2×529199749129109² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 529199749129109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (529199749129189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264599874564554 + 264599874564555.

It is an arithmetic number, because the mean of its divisors is an integer number (264599874564555).

Almost surely, 2^{529199749129109} is an apocalyptic number.

It is an amenable number.

529199749129109 is a deficient number, since it is larger than the sum of its proper divisors (1).

529199749129109 is an equidigital number, since it uses as much as digits as its factorization.

529199749129109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 297606960, while the sum is 77.

The spelling of 529199749129109 in words is "five hundred twenty-nine trillion, one hundred ninety-nine billion, seven hundred forty-nine million, one hundred twenty-nine thousand, one hundred nine".