2665298747 has 2 divisors, whose sum is σ = 2665298748. Its totient is φ = 2665298746.

The previous prime is 2665298731. The next prime is 2665298809. The reversal of 2665298747 is 7478925662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2665298747 - 2⁴ = 2665298731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2665298692 and 2665298701.

It is not a weakly prime, because it can be changed into another prime (2665298717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332649373 + 1332649374.

It is an arithmetic number, because the mean of its divisors is an integer number (1332649374).

Almost surely, 2^2665298747 is an apocalyptic number.

2665298747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665298747 is an equidigital number, since it uses as much as digits as its factorization.

2665298747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 56.

The square root of 2665298747 is about 51626.5314252275. The cubic root of 2665298747 is about 1386.4853925145.

The spelling of 2665298747 in words is "two billion, six hundred sixty-five million, two hundred ninety-eight thousand, seven hundred forty-seven".