423065410549 has 2 divisors, whose sum is σ = 423065410550. Its totient is φ = 423065410548.

The previous prime is 423065410501. The next prime is 423065410589. The reversal of 423065410549 is 945014560324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244975502500 + 178089908049 = 494950^2 + 422007^2 .

It is a cyclic number.

It is not a de Polignac number, because 423065410549 - 2²¹ = 423063313397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423065410589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211532705274 + 211532705275.

It is an arithmetic number, because the mean of its divisors is an integer number (211532705275).

Almost surely, 2^423065410549 is an apocalyptic number.

It is an amenable number.

423065410549 is a deficient number, since it is larger than the sum of its proper divisors (1).

423065410549 is an equidigital number, since it uses as much as digits as its factorization.

423065410549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 423065410549 in words is "four hundred twenty-three billion, sixty-five million, four hundred ten thousand, five hundred forty-nine".