42000424042429 has 2 divisors, whose sum is σ = 42000424042430. Its totient is φ = 42000424042428.

The previous prime is 42000424042387. The next prime is 42000424042463. The reversal of 42000424042429 is 92424042400024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38152882947204 + 3847541095225 = 6176802^2 + 1961515^2 .

It is a cyclic number.

It is not a de Polignac number, because 42000424042429 - 2²⁵ = 42000390487997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42000424043429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21000212021214 + 21000212021215.

It is an arithmetic number, because the mean of its divisors is an integer number (21000212021215).

Almost surely, 2^{42000424042429} is an apocalyptic number.

It is an amenable number.

42000424042429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42000424042429 is an equidigital number, since it uses as much as digits as its factorization.

42000424042429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 42000424042429 in words is "forty-two trillion, four hundred twenty-four million, forty-two thousand, four hundred twenty-nine".