2628218275541 has 2 divisors, whose sum is σ = 2628218275542. Its totient is φ = 2628218275540.

The previous prime is 2628218275537. The next prime is 2628218275591. The reversal of 2628218275541 is 1455728128262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2213638108900 + 414580166641 = 1487830^2 + 643879^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628218275541 - 2² = 2628218275537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 1314109137770 + 1314109137771.

It is an arithmetic number, because the mean of its divisors is an integer number (1314109137771).

Almost surely, 2^{2628218275541} is an apocalyptic number.

It is an amenable number.

2628218275541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628218275541 is an equidigital number, since it uses as much as digits as its factorization.

2628218275541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4300800, while the sum is 53.

The spelling of 2628218275541 in words is "two trillion, six hundred twenty-eight billion, two hundred eighteen million, two hundred seventy-five thousand, five hundred forty-one".