42244202149 has 2 divisors, whose sum is σ = 42244202150. Its totient is φ = 42244202148.

The previous prime is 42244202131. The next prime is 42244202213. The reversal of 42244202149 is 94120244224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41979912100 + 264290049 = 204890^2 + 16257^2 .

It is a cyclic number.

It is not a de Polignac number, because 42244202149 - 2³³ = 33654267557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42244202249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21122101074 + 21122101075.

It is an arithmetic number, because the mean of its divisors is an integer number (21122101075).

Almost surely, 2^42244202149 is an apocalyptic number.

It is an amenable number.

42244202149 is a deficient number, since it is larger than the sum of its proper divisors (1).

42244202149 is an equidigital number, since it uses as much as digits as its factorization.

42244202149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 42244202149 in words is "forty-two billion, two hundred forty-four million, two hundred two thousand, one hundred forty-nine".