84448440871 has 2 divisors, whose sum is σ = 84448440872. Its totient is φ = 84448440870.

The previous prime is 84448440859. The next prime is 84448440917. The reversal of 84448440871 is 17804484448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84448440871 - 2²¹ = 84446343719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84448470871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42224220435 + 42224220436.

It is an arithmetic number, because the mean of its divisors is an integer number (42224220436).

Almost surely, 2^84448440871 is an apocalyptic number.

84448440871 is a deficient number, since it is larger than the sum of its proper divisors (1).

84448440871 is an equidigital number, since it uses as much as digits as its factorization.

84448440871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3670016, while the sum is 52.

The spelling of 84448440871 in words is "eighty-four billion, four hundred forty-eight million, four hundred forty thousand, eight hundred seventy-one".