42284542387 has 2 divisors, whose sum is σ = 42284542388. Its totient is φ = 42284542386.

The previous prime is 42284542331. The next prime is 42284542409. The reversal of 42284542387 is 78324548224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42284542387 - 2³¹ = 40137058739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42284542387.

It is not a weakly prime, because it can be changed into another prime (42284542087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21142271193 + 21142271194.

It is an arithmetic number, because the mean of its divisors is an integer number (21142271194).

Almost surely, 2^42284542387 is an apocalyptic number.

42284542387 is a deficient number, since it is larger than the sum of its proper divisors (1).

42284542387 is an equidigital number, since it uses as much as digits as its factorization.

42284542387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3440640, while the sum is 49.

The spelling of 42284542387 in words is "forty-two billion, two hundred eighty-four million, five hundred forty-two thousand, three hundred eighty-seven".