84164185325487 has 32 divisors (see below), whose sum is σ = 122673596221440. Its totient is φ = 51096776924160.

The previous prime is 84164185325477. The next prime is 84164185325491. The reversal of 84164185325487 is 78452358146148.

It is not a de Polignac number, because 84164185325487 - 2⁷ = 84164185325359 is a prime.

It is a super-2 number, since 2×84164185325487² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84164185325447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4907763 + ... + 13871355.

It is an arithmetic number, because the mean of its divisors is an integer number (3833549881920).

Almost surely, 2^{84164185325487} is an apocalyptic number.

84164185325487 is a deficient number, since it is larger than the sum of its proper divisors (38509410895953).

84164185325487 is a wasteful number, since it uses less digits than its factorization.

84164185325487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969583.

The product of its digits is 206438400, while the sum is 66.

The spelling of 84164185325487 in words is "eighty-four trillion, one hundred sixty-four billion, one hundred eighty-five million, three hundred twenty-five thousand, four hundred eighty-seven".