2061748789 has 2 divisors, whose sum is σ = 2061748790. Its totient is φ = 2061748788.

The previous prime is 2061748769. The next prime is 2061748883. The reversal of 2061748789 is 9878471602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1786752900 + 274995889 = 42270^2 + 16583^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061748789 - 2⁹ = 2061748277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2061748769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030874394 + 1030874395.

It is an arithmetic number, because the mean of its divisors is an integer number (1030874395).

Almost surely, 2^2061748789 is an apocalyptic number.

It is an amenable number.

2061748789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061748789 is an equidigital number, since it uses as much as digits as its factorization.

2061748789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 2061748789 is about 45406.4839973324. The cubic root of 2061748789 is about 1272.7562822947.

The spelling of 2061748789 in words is "two billion, sixty-one million, seven hundred forty-eight thousand, seven hundred eighty-nine".