4351420241549 has 2 divisors, whose sum is σ = 4351420241550. Its totient is φ = 4351420241548.

The previous prime is 4351420241479. The next prime is 4351420241593. The reversal of 4351420241549 is 9451420241534.

It is an a-pointer prime, because the next prime (4351420241593) can be obtained adding 4351420241549 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4348434384100 + 2985857449 = 2085290^2 + 54643^2 .

It is a cyclic number.

It is not a de Polignac number, because 4351420241549 - 2⁸ = 4351420241293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4351420241849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175710120774 + 2175710120775.

It is an arithmetic number, because the mean of its divisors is an integer number (2175710120775).

Almost surely, 2^{4351420241549} is an apocalyptic number.

It is an amenable number.

4351420241549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4351420241549 is an equidigital number, since it uses as much as digits as its factorization.

4351420241549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 4351420241549 in words is "four trillion, three hundred fifty-one billion, four hundred twenty million, two hundred forty-one thousand, five hundred forty-nine".