223775078017 has 2 divisors, whose sum is σ = 223775078018. Its totient is φ = 223775078016.

The previous prime is 223775077969. The next prime is 223775078039. The reversal of 223775078017 is 710870577322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203289167376 + 20485910641 = 450876^2 + 143129^2 .

It is a cyclic number.

It is not a de Polignac number, because 223775078017 - 2³¹ = 221627594369 is a prime.

It is not a weakly prime, because it can be changed into another prime (223775078077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111887539008 + 111887539009.

It is an arithmetic number, because the mean of its divisors is an integer number (111887539009).

Almost surely, 2^223775078017 is an apocalyptic number.

It is an amenable number.

223775078017 is a deficient number, since it is larger than the sum of its proper divisors (1).

223775078017 is an equidigital number, since it uses as much as digits as its factorization.

223775078017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 223775078017 in words is "two hundred twenty-three billion, seven hundred seventy-five million, seventy-eight thousand, seventeen".