2628218275591 has 2 divisors, whose sum is σ = 2628218275592. Its totient is φ = 2628218275590.

The previous prime is 2628218275541. The next prime is 2628218275601. The reversal of 2628218275591 is 1955728128262.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2628218275591 - 2²¹ = 2628216178439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2628218275511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314109137795 + 1314109137796.

It is an arithmetic number, because the mean of its divisors is an integer number (1314109137796).

Almost surely, 2^{2628218275591} is an apocalyptic number.

2628218275591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628218275591 is an equidigital number, since it uses as much as digits as its factorization.

2628218275591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 58.

The spelling of 2628218275591 in words is "two trillion, six hundred twenty-eight billion, two hundred eighteen million, two hundred seventy-five thousand, five hundred ninety-one".