42210413549 has 2 divisors, whose sum is σ = 42210413550. Its totient is φ = 42210413548.

The previous prime is 42210413537. The next prime is 42210413611. The reversal of 42210413549 is 94531401224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42017620324 + 192793225 = 204982^2 + 13885^2 .

It is a cyclic number.

It is not a de Polignac number, because 42210413549 - 2¹² = 42210409453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42210412549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105206774 + 21105206775.

It is an arithmetic number, because the mean of its divisors is an integer number (21105206775).

Almost surely, 2^42210413549 is an apocalyptic number.

It is an amenable number.

42210413549 is a deficient number, since it is larger than the sum of its proper divisors (1).

42210413549 is an equidigital number, since it uses as much as digits as its factorization.

42210413549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 42210413549 in words is "forty-two billion, two hundred ten million, four hundred thirteen thousand, five hundred forty-nine".