422134021549 has 2 divisors, whose sum is σ = 422134021550. Its totient is φ = 422134021548.

The previous prime is 422134021511. The next prime is 422134021579. The reversal of 422134021549 is 945120431224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351115502500 + 71018519049 = 592550^2 + 266493^2 .

It is a cyclic number.

It is not a de Polignac number, because 422134021549 - 2¹⁵ = 422133988781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422134021579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211067010774 + 211067010775.

It is an arithmetic number, because the mean of its divisors is an integer number (211067010775).

Almost surely, 2^422134021549 is an apocalyptic number.

It is an amenable number.

422134021549 is a deficient number, since it is larger than the sum of its proper divisors (1).

422134021549 is an equidigital number, since it uses as much as digits as its factorization.

422134021549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 422134021549 in words is "four hundred twenty-two billion, one hundred thirty-four million, twenty-one thousand, five hundred forty-nine".