2628561520171 has 2 divisors, whose sum is σ = 2628561520172. Its totient is φ = 2628561520170.

The previous prime is 2628561520157. The next prime is 2628561520183. The reversal of 2628561520171 is 1710251658262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2628561520171 - 2¹⁷ = 2628561389099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2628561520471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314280760085 + 1314280760086.

It is an arithmetic number, because the mean of its divisors is an integer number (1314280760086).

Almost surely, 2^{2628561520171} is an apocalyptic number.

2628561520171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628561520171 is an equidigital number, since it uses as much as digits as its factorization.

2628561520171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 2628561520171 in words is "two trillion, six hundred twenty-eight billion, five hundred sixty-one million, five hundred twenty thousand, one hundred seventy-one".