2767720489 has 2 divisors, whose sum is σ = 2767720490. Its totient is φ = 2767720488.

The previous prime is 2767720471. The next prime is 2767720511. The reversal of 2767720489 is 9840277672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2469294864 + 298425625 = 49692^2 + 17275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2767720489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2767720469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383860244 + 1383860245.

It is an arithmetic number, because the mean of its divisors is an integer number (1383860245).

Almost surely, 2^2767720489 is an apocalyptic number.

It is an amenable number.

2767720489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2767720489 is an equidigital number, since it uses as much as digits as its factorization.

2767720489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 2767720489 is about 52609.1293313242. The cubic root of 2767720489 is about 1404.0225280339.

The spelling of 2767720489 in words is "two billion, seven hundred sixty-seven million, seven hundred twenty thousand, four hundred eighty-nine".