2661350089 has 2 divisors, whose sum is σ = 2661350090. Its totient is φ = 2661350088.

The previous prime is 2661350009. The next prime is 2661350099. The reversal of 2661350089 is 9800531662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1724990089 + 936360000 = 41533^2 + 30600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661350089 - 2²⁹ = 2124479177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2661350009) 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, 1330675044 + 1330675045.

It is an arithmetic number, because the mean of its divisors is an integer number (1330675045).

Almost surely, 2^2661350089 is an apocalyptic number.

It is an amenable number.

2661350089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661350089 is an equidigital number, since it uses as much as digits as its factorization.

2661350089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 2661350089 is about 51588.2747240107. The cubic root of 2661350089 is about 1385.8003583008.

The spelling of 2661350089 in words is "two billion, six hundred sixty-one million, three hundred fifty thousand, eighty-nine".