472777558450817 has 2 divisors, whose sum is σ = 472777558450818. Its totient is φ = 472777558450816.

The previous prime is 472777558450789. The next prime is 472777558450829. The reversal of 472777558450817 is 718054855777274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238660354260496 + 234117204190321 = 15448636^2 + 15300889^2 .

It is a cyclic number.

It is not a de Polignac number, because 472777558450817 - 2⁴⁶ = 402408814273153 is a prime.

It is not a weakly prime, because it can be changed into another prime (472777558450837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236388779225408 + 236388779225409.

It is an arithmetic number, because the mean of its divisors is an integer number (236388779225409).

Almost surely, 2^{472777558450817} is an apocalyptic number.

It is an amenable number.

472777558450817 is a deficient number, since it is larger than the sum of its proper divisors (1).

472777558450817 is an equidigital number, since it uses as much as digits as its factorization.

472777558450817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4302592000, while the sum is 77.

The spelling of 472777558450817 in words is "four hundred seventy-two trillion, seven hundred seventy-seven billion, five hundred fifty-eight million, four hundred fifty thousand, eight hundred seventeen".