4203220668377 has 2 divisors, whose sum is σ = 4203220668378. Its totient is φ = 4203220668376.

The previous prime is 4203220668337. The next prime is 4203220668419. The reversal of 4203220668377 is 7738660223024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4127171023936 + 76049644441 = 2031544^2 + 275771^2 .

It is a cyclic number.

It is not a de Polignac number, because 4203220668377 - 2³² = 4198925701081 is a prime.

It is not a weakly prime, because it can be changed into another prime (4203220668337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101610334188 + 2101610334189.

It is an arithmetic number, because the mean of its divisors is an integer number (2101610334189).

Almost surely, 2^{4203220668377} is an apocalyptic number.

It is an amenable number.

4203220668377 is a deficient number, since it is larger than the sum of its proper divisors (1).

4203220668377 is an equidigital number, since it uses as much as digits as its factorization.

4203220668377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 4203220668377 in words is "four trillion, two hundred three billion, two hundred twenty million, six hundred sixty-eight thousand, three hundred seventy-seven".