84486644466845 has 64 divisors (see below), whose sum is σ = 111007140975360. Its totient is φ = 61508686694400.

The previous prime is 84486644466827. The next prime is 84486644466871. The reversal of 84486644466845 is 54866444668448.

It is a de Polignac number, because none of the positive numbers 2^k-84486644466845 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 558650459 + ... + 558801671.

It is an arithmetic number, because the mean of its divisors is an integer number (1734486577740).

Almost surely, 2^{84486644466845} is an apocalyptic number.

It is an amenable number.

84486644466845 is a deficient number, since it is larger than the sum of its proper divisors (26520496508515).

84486644466845 is a wasteful number, since it uses less digits than its factorization.

84486644466845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153486.

The product of its digits is 13589544960, while the sum is 77.

The spelling of 84486644466845 in words is "eighty-four trillion, four hundred eighty-six billion, six hundred forty-four million, four hundred sixty-six thousand, eight hundred forty-five".