2730822905557 has 2 divisors, whose sum is σ = 2730822905558. Its totient is φ = 2730822905556.

The previous prime is 2730822905527. The next prime is 2730822905621. The reversal of 2730822905557 is 7555092280372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1604070377361 + 1126752528196 = 1266519^2 + 1061486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730822905557 - 2⁷ = 2730822905429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2730822905498 and 2730822905507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2730822905527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365411452778 + 1365411452779.

It is an arithmetic number, because the mean of its divisors is an integer number (1365411452779).

Almost surely, 2^{2730822905557} is an apocalyptic number.

It is an amenable number.

2730822905557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730822905557 is an equidigital number, since it uses as much as digits as its factorization.

2730822905557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 2730822905557 in words is "two trillion, seven hundred thirty billion, eight hundred twenty-two million, nine hundred five thousand, five hundred fifty-seven".