429347542389581 has 2 divisors, whose sum is σ = 429347542389582. Its totient is φ = 429347542389580.

The previous prime is 429347542389529. The next prime is 429347542389589. The reversal of 429347542389581 is 185983245743924.

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., 324957081752356 + 104390460637225 = 18026566^2 + 10217165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429347542389581 is a prime.

It is a super-2 number, since 2×429347542389581² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 429347542389499 and 429347542389508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429347542389589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214673771194790 + 214673771194791.

It is an arithmetic number, because the mean of its divisors is an integer number (214673771194791).

Almost surely, 2^{429347542389581} is an apocalyptic number.

It is an amenable number.

429347542389581 is a deficient number, since it is larger than the sum of its proper divisors (1).

429347542389581 is an equidigital number, since it uses as much as digits as its factorization.

429347542389581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2090188800, while the sum is 74.

The spelling of 429347542389581 in words is "four hundred twenty-nine trillion, three hundred forty-seven billion, five hundred forty-two million, three hundred eighty-nine thousand, five hundred eighty-one".