84064145852871 has 48 divisors (see below), whose sum is σ = 128282146200000. Its totient is φ = 52972547443200.

The previous prime is 84064145852861. The next prime is 84064145852893. The reversal of 84064145852871 is 17825854146048.

84064145852871 is a `hidden beast` number, since 8 + 4 + 0 + 6 + 41 + 4 + 585 + 2 + 8 + 7 + 1 = 666.

It is not a de Polignac number, because 84064145852871 - 2⁹ = 84064145852359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84064145852799 and 84064145852808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84064145852801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15569371 + ... + 20261628.

It is an arithmetic number, because the mean of its divisors is an integer number (2672544712500).

Almost surely, 2^{84064145852871} is an apocalyptic number.

84064145852871 is a deficient number, since it is larger than the sum of its proper divisors (44218000347129).

84064145852871 is a wasteful number, since it uses less digits than its factorization.

84064145852871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35831224 (or 35831221 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 63.

The spelling of 84064145852871 in words is "eighty-four trillion, sixty-four billion, one hundred forty-five million, eight hundred fifty-two thousand, eight hundred seventy-one".