42489698429 has 2 divisors, whose sum is σ = 42489698430. Its totient is φ = 42489698428.

The previous prime is 42489698411. The next prime is 42489698437. The reversal of 42489698429 is 92489698424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37095530404 + 5394168025 = 192602^2 + 73445^2 .

It is a cyclic number.

It is not a de Polignac number, because 42489698429 - 2¹² = 42489694333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42489698929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21244849214 + 21244849215.

It is an arithmetic number, because the mean of its divisors is an integer number (21244849215).

Almost surely, 2^42489698429 is an apocalyptic number.

It is an amenable number.

42489698429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42489698429 is an equidigital number, since it uses as much as digits as its factorization.

42489698429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71663616, while the sum is 65.

It can be divided in two parts, 424896 and 98429, that added together give a palindrome (523325).

The spelling of 42489698429 in words is "forty-two billion, four hundred eighty-nine million, six hundred ninety-eight thousand, four hundred twenty-nine".