42415487999 has 2 divisors, whose sum is σ = 42415488000. Its totient is φ = 42415487998.

The previous prime is 42415487941. The next prime is 42415488023. The reversal of 42415487999 is 99978451424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42415487999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42415487909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21207743999 + 21207744000.

It is an arithmetic number, because the mean of its divisors is an integer number (21207744000).

Almost surely, 2^42415487999 is an apocalyptic number.

42415487999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415487999 is an equidigital number, since it uses as much as digits as its factorization.

42415487999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 62.

The spelling of 42415487999 in words is "forty-two billion, four hundred fifteen million, four hundred eighty-seven thousand, nine hundred ninety-nine".