42498397429 has 2 divisors, whose sum is σ = 42498397430. Its totient is φ = 42498397428.

The previous prime is 42498397399. The next prime is 42498397451. The reversal of 42498397429 is 92479389424.

42498397429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31567694929 + 10930702500 = 177673^2 + 104550^2 .

It is a cyclic number.

It is not a de Polignac number, because 42498397429 - 2⁷ = 42498397301 is a prime.

It is a super-2 number, since 2×42498397429² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42498397489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21249198714 + 21249198715.

It is an arithmetic number, because the mean of its divisors is an integer number (21249198715).

Almost surely, 2^42498397429 is an apocalyptic number.

It is an amenable number.

42498397429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42498397429 is an equidigital number, since it uses as much as digits as its factorization.

42498397429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31352832, while the sum is 61.

The spelling of 42498397429 in words is "forty-two billion, four hundred ninety-eight million, three hundred ninety-seven thousand, four hundred twenty-nine".