42216885097 has 2 divisors, whose sum is σ = 42216885098. Its totient is φ = 42216885096.

The previous prime is 42216884999. The next prime is 42216885119. The reversal of 42216885097 is 79058861224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24861720976 + 17355164121 = 157676^2 + 131739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42216885097 is a prime.

It is not a weakly prime, because it can be changed into another prime (42216585097) 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, 21108442548 + 21108442549.

It is an arithmetic number, because the mean of its divisors is an integer number (21108442549).

Almost surely, 2^42216885097 is an apocalyptic number.

It is an amenable number.

42216885097 is a deficient number, since it is larger than the sum of its proper divisors (1).

42216885097 is an equidigital number, since it uses as much as digits as its factorization.

42216885097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 42216885097 in words is "forty-two billion, two hundred sixteen million, eight hundred eighty-five thousand, ninety-seven".