2471742569 has 2 divisors, whose sum is σ = 2471742570. Its totient is φ = 2471742568.

The previous prime is 2471742563. The next prime is 2471742601. The reversal of 2471742569 is 9652471742.

2471742569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2454211600 + 17530969 = 49540^2 + 4187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2471742569 is a prime.

It is a super-2 number, since 2×2471742569² = 12219022654813439522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2471742563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235871284 + 1235871285.

It is an arithmetic number, because the mean of its divisors is an integer number (1235871285).

Almost surely, 2^2471742569 is an apocalyptic number.

It is an amenable number.

2471742569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2471742569 is an equidigital number, since it uses as much as digits as its factorization.

2471742569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 2471742569 is about 49716.6226628479. The cubic root of 2471742569 is about 1352.0759225904.

The spelling of 2471742569 in words is "two billion, four hundred seventy-one million, seven hundred forty-two thousand, five hundred sixty-nine".