63403727417 has 2 divisors, whose sum is σ = 63403727418. Its totient is φ = 63403727416.

The previous prime is 63403727393. The next prime is 63403727437. The reversal of 63403727417 is 71472730436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61827319801 + 1576407616 = 248651^2 + 39704^2 .

It is a cyclic number.

It is not a de Polignac number, because 63403727417 - 2¹² = 63403723321 is a prime.

It is not a weakly prime, because it can be changed into another prime (63403727437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31701863708 + 31701863709.

It is an arithmetic number, because the mean of its divisors is an integer number (31701863709).

Almost surely, 2^63403727417 is an apocalyptic number.

It is an amenable number.

63403727417 is a deficient number, since it is larger than the sum of its proper divisors (1).

63403727417 is an equidigital number, since it uses as much as digits as its factorization.

63403727417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 63403727417 in words is "sixty-three billion, four hundred three million, seven hundred twenty-seven thousand, four hundred seventeen".