42000424042387 has 2 divisors, whose sum is σ = 42000424042388. Its totient is φ = 42000424042386.

The previous prime is 42000424042373. The next prime is 42000424042429. The reversal of 42000424042387 is 78324042400024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42000424042387 - 2¹⁵ = 42000424009619 is a prime.

It is not a weakly prime, because it can be changed into another prime (42000424042327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21000212021193 + 21000212021194.

It is an arithmetic number, because the mean of its divisors is an integer number (21000212021194).

Almost surely, 2^{42000424042387} is an apocalyptic number.

42000424042387 is a deficient number, since it is larger than the sum of its proper divisors (1).

42000424042387 is an equidigital number, since it uses as much as digits as its factorization.

42000424042387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 344064, while the sum is 40.

The spelling of 42000424042387 in words is "forty-two trillion, four hundred twenty-four million, forty-two thousand, three hundred eighty-seven".