523407764543429 has 2 divisors, whose sum is σ = 523407764543430. Its totient is φ = 523407764543428.

The previous prime is 523407764543387. The next prime is 523407764543441. The reversal of 523407764543429 is 924345467704325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 483007121720929 + 40400642822500 = 21977423^2 + 6356150^2 .

It is a cyclic number.

It is not a de Polignac number, because 523407764543429 - 2¹² = 523407764539333 is a prime.

It is a super-2 number, since 2×523407764543429² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523407764543129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261703882271714 + 261703882271715.

It is an arithmetic number, because the mean of its divisors is an integer number (261703882271715).

Almost surely, 2^{523407764543429} is an apocalyptic number.

It is an amenable number.

523407764543429 is a deficient number, since it is larger than the sum of its proper divisors (1).

523407764543429 is an equidigital number, since it uses as much as digits as its factorization.

523407764543429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 609638400, while the sum is 65.

The spelling of 523407764543429 in words is "five hundred twenty-three trillion, four hundred seven billion, seven hundred sixty-four million, five hundred forty-three thousand, four hundred twenty-nine".