42718150109 has 2 divisors, whose sum is σ = 42718150110. Its totient is φ = 42718150108.

The previous prime is 42718150087. The next prime is 42718150121. The reversal of 42718150109 is 90105181724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38424624484 + 4293525625 = 196022^2 + 65525^2 .

It is a cyclic number.

It is not a de Polignac number, because 42718150109 - 2⁸ = 42718149853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42718150159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21359075054 + 21359075055.

It is an arithmetic number, because the mean of its divisors is an integer number (21359075055).

Almost surely, 2^42718150109 is an apocalyptic number.

It is an amenable number.

42718150109 is a deficient number, since it is larger than the sum of its proper divisors (1).

42718150109 is an equidigital number, since it uses as much as digits as its factorization.

42718150109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 42718150109 in words is "forty-two billion, seven hundred eighteen million, one hundred fifty thousand, one hundred nine".