42718215937 has 2 divisors, whose sum is σ = 42718215938. Its totient is φ = 42718215936.

The previous prime is 42718215901. The next prime is 42718215959. The reversal of 42718215937 is 73951281724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39505140081 + 3213075856 = 198759^2 + 56684^2 .

It is a cyclic number.

It is not a de Polignac number, because 42718215937 - 2⁷ = 42718215809 is a prime.

It is not a weakly prime, because it can be changed into another prime (42718215437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21359107968 + 21359107969.

It is an arithmetic number, because the mean of its divisors is an integer number (21359107969).

Almost surely, 2^42718215937 is an apocalyptic number.

It is an amenable number.

42718215937 is a deficient number, since it is larger than the sum of its proper divisors (1).

42718215937 is an equidigital number, since it uses as much as digits as its factorization.

42718215937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The spelling of 42718215937 in words is "forty-two billion, seven hundred eighteen million, two hundred fifteen thousand, nine hundred thirty-seven".