8461872071 has 2 divisors, whose sum is σ = 8461872072. Its totient is φ = 8461872070.

The previous prime is 8461872059. The next prime is 8461872079. The reversal of 8461872071 is 1702781648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8461872071 - 2¹⁸ = 8461609927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8461872079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230936035 + 4230936036.

It is an arithmetic number, because the mean of its divisors is an integer number (4230936036).

Almost surely, 2^8461872071 is an apocalyptic number.

8461872071 is a deficient number, since it is larger than the sum of its proper divisors (1).

8461872071 is an equidigital number, since it uses as much as digits as its factorization.

8461872071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 8461872071 is about 91988.4344415101. The cubic root of 8461872071 is about 2037.7715052698.

The spelling of 8461872071 in words is "eight billion, four hundred sixty-one million, eight hundred seventy-two thousand, seventy-one".