8461808743 has 2 divisors, whose sum is σ = 8461808744. Its totient is φ = 8461808742.

The previous prime is 8461808741. The next prime is 8461808753. The reversal of 8461808743 is 3478081648.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8461808743 - 2¹ = 8461808741 is a prime.

It is a super-2 number, since 2×8461808743² (a number of 21 digits) contains 22 as substring.

Together with 8461808741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8461808741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230904371 + 4230904372.

It is an arithmetic number, because the mean of its divisors is an integer number (4230904372).

Almost surely, 2^8461808743 is an apocalyptic number.

8461808743 is a deficient number, since it is larger than the sum of its proper divisors (1).

8461808743 is an equidigital number, since it uses as much as digits as its factorization.

8461808743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 8461808743 is about 91988.0902236806. The cubic root of 8461808743 is about 2037.7664217487.

The spelling of 8461808743 in words is "eight billion, four hundred sixty-one million, eight hundred eight thousand, seven hundred forty-three".