84423040071 has 4 divisors (see below), whose sum is σ = 112564053432. Its totient is φ = 56282026712.

The previous prime is 84423040049. The next prime is 84423040087. The reversal of 84423040071 is 17004032448.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84423040071 - 2⁹ = 84423039559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84423040021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14070506676 + ... + 14070506681.

It is an arithmetic number, because the mean of its divisors is an integer number (28141013358).

Almost surely, 2^84423040071 is an apocalyptic number.

84423040071 is a deficient number, since it is larger than the sum of its proper divisors (28141013361).

84423040071 is a wasteful number, since it uses less digits than its factorization.

84423040071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28141013360.

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 84423040071 in words is "eighty-four billion, four hundred twenty-three million, forty thousand, seventy-one".