42905630189027 has 2 divisors, whose sum is σ = 42905630189028. Its totient is φ = 42905630189026.

The previous prime is 42905630188991. The next prime is 42905630189057. The reversal of 42905630189027 is 72098103650924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42905630189027 is a prime.

It is not a weakly prime, because it can be changed into another prime (42905630189057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21452815094513 + 21452815094514.

It is an arithmetic number, because the mean of its divisors is an integer number (21452815094514).

It is a 1-persistent number, because it is pandigital, but 2⋅42905630189027 = 85811260378054 is not.

Almost surely, 2^{42905630189027} is an apocalyptic number.

42905630189027 is a deficient number, since it is larger than the sum of its proper divisors (1).

42905630189027 is an equidigital number, since it uses as much as digits as its factorization.

42905630189027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 42905630189027 in words is "forty-two trillion, nine hundred five billion, six hundred thirty million, one hundred eighty-nine thousand, twenty-seven".