429135326881 has 2 divisors, whose sum is σ = 429135326882. Its totient is φ = 429135326880.

The previous prime is 429135326831. The next prime is 429135326909. The reversal of 429135326881 is 188623531924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406545236881 + 22590090000 = 637609^2 + 150300^2 .

It is a cyclic number.

It is not a de Polignac number, because 429135326881 - 2⁹ = 429135326369 is a prime.

It is a super-2 number, since 2×429135326881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (429135326821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214567663440 + 214567663441.

It is an arithmetic number, because the mean of its divisors is an integer number (214567663441).

Almost surely, 2^429135326881 is an apocalyptic number.

It is an amenable number.

429135326881 is a deficient number, since it is larger than the sum of its proper divisors (1).

429135326881 is an equidigital number, since it uses as much as digits as its factorization.

429135326881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 52.

The spelling of 429135326881 in words is "four hundred twenty-nine billion, one hundred thirty-five million, three hundred twenty-six thousand, eight hundred eighty-one".