42004162987 has 2 divisors, whose sum is σ = 42004162988. Its totient is φ = 42004162986.

The previous prime is 42004162979. The next prime is 42004163029. The reversal of 42004162987 is 78926140024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42004162987 - 2³ = 42004162979 is a prime.

It is not a weakly prime, because it can be changed into another prime (42004162927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21002081493 + 21002081494.

It is an arithmetic number, because the mean of its divisors is an integer number (21002081494).

Almost surely, 2^42004162987 is an apocalyptic number.

42004162987 is a deficient number, since it is larger than the sum of its proper divisors (1).

42004162987 is an equidigital number, since it uses as much as digits as its factorization.

42004162987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 42004162987 in words is "forty-two billion, four million, one hundred sixty-two thousand, nine hundred eighty-seven".