42452455109 has 2 divisors, whose sum is σ = 42452455110. Its totient is φ = 42452455108.

The previous prime is 42452455093. The next prime is 42452455139. The reversal of 42452455109 is 90155425424.

42452455109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42324832900 + 127622209 = 205730^2 + 11297^2 .

It is a cyclic number.

It is not a de Polignac number, because 42452455109 - 2⁴ = 42452455093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42452455139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21226227554 + 21226227555.

It is an arithmetic number, because the mean of its divisors is an integer number (21226227555).

Almost surely, 2^42452455109 is an apocalyptic number.

It is an amenable number.

42452455109 is a deficient number, since it is larger than the sum of its proper divisors (1).

42452455109 is an equidigital number, since it uses as much as digits as its factorization.

42452455109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 42452455109 in words is "forty-two billion, four hundred fifty-two million, four hundred fifty-five thousand, one hundred nine".