2785027384121 has 2 divisors, whose sum is σ = 2785027384122. Its totient is φ = 2785027384120.

The previous prime is 2785027384067. The next prime is 2785027384133. The reversal of 2785027384121 is 1214837205872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1399462974121 + 1385564410000 = 1182989^2 + 1177100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2785027384121 - 2³⁰ = 2783953642297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2785027384121.

It is not a weakly prime, because it can be changed into another prime (2785027384621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392513692060 + 1392513692061.

It is an arithmetic number, because the mean of its divisors is an integer number (1392513692061).

Almost surely, 2^{2785027384121} is an apocalyptic number.

It is an amenable number.

2785027384121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785027384121 is an equidigital number, since it uses as much as digits as its factorization.

2785027384121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 2785027384121 in words is "two trillion, seven hundred eighty-five billion, twenty-seven million, three hundred eighty-four thousand, one hundred twenty-one".