2063975561 has 2 divisors, whose sum is σ = 2063975562. Its totient is φ = 2063975560.

The previous prime is 2063975539. The next prime is 2063975581. The reversal of 2063975561 is 1655793602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1657711225 + 406264336 = 40715^2 + 20156^2 .

It is a cyclic number.

It is not a de Polignac number, because 2063975561 - 2⁶ = 2063975497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2063975521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031987780 + 1031987781.

It is an arithmetic number, because the mean of its divisors is an integer number (1031987781).

Almost surely, 2^2063975561 is an apocalyptic number.

It is an amenable number.

2063975561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2063975561 is an equidigital number, since it uses as much as digits as its factorization.

2063975561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 2063975561 is about 45430.9977988598. The cubic root of 2063975561 is about 1273.2143268362.

The spelling of 2063975561 in words is "two billion, sixty-three million, nine hundred seventy-five thousand, five hundred sixty-one".