42415364987 has 2 divisors, whose sum is σ = 42415364988. Its totient is φ = 42415364986.

The previous prime is 42415364947. The next prime is 42415364993. The reversal of 42415364987 is 78946351424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42415364987 - 2¹⁸ = 42415102843 is a prime.

It is not a weakly prime, because it can be changed into another prime (42415364947) 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, 21207682493 + 21207682494.

It is an arithmetic number, because the mean of its divisors is an integer number (21207682494).

Almost surely, 2^42415364987 is an apocalyptic number.

42415364987 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415364987 is an equidigital number, since it uses as much as digits as its factorization.

42415364987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 53.

The spelling of 42415364987 in words is "forty-two billion, four hundred fifteen million, three hundred sixty-four thousand, nine hundred eighty-seven".