205311470364547 has 2 divisors, whose sum is σ = 205311470364548. Its totient is φ = 205311470364546.

The previous prime is 205311470364523. The next prime is 205311470364563. The reversal of 205311470364547 is 745463074113502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205311470364547 is a prime.

It is a super-2 number, since 2×205311470364547² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205311470364494 and 205311470364503.

It is not a weakly prime, because it can be changed into another prime (205311470314547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102655735182273 + 102655735182274.

It is an arithmetic number, because the mean of its divisors is an integer number (102655735182274).

Almost surely, 2^{205311470364547} is an apocalyptic number.

205311470364547 is a deficient number, since it is larger than the sum of its proper divisors (1).

205311470364547 is an equidigital number, since it uses as much as digits as its factorization.

205311470364547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 205311470364547 in words is "two hundred five trillion, three hundred eleven billion, four hundred seventy million, three hundred sixty-four thousand, five hundred forty-seven".