2090791305457 has 2 divisors, whose sum is σ = 2090791305458. Its totient is φ = 2090791305456.

The previous prime is 2090791305413. The next prime is 2090791305497. The reversal of 2090791305457 is 7545031970902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2031169386481 + 59621918976 = 1425191^2 + 244176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090791305457 - 2³¹ = 2088643821809 is a prime.

It is a super-3 number, since 3×2090791305457³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2090791305497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045395652728 + 1045395652729.

It is an arithmetic number, because the mean of its divisors is an integer number (1045395652729).

Almost surely, 2^{2090791305457} is an apocalyptic number.

It is an amenable number.

2090791305457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090791305457 is an equidigital number, since it uses as much as digits as its factorization.

2090791305457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 2090791305457 in words is "two trillion, ninety billion, seven hundred ninety-one million, three hundred five thousand, four hundred fifty-seven".