84687040628893 has 16 divisors (see below), whose sum is σ = 90277336949184. Its totient is φ = 79165756821760.

The previous prime is 84687040628887. The next prime is 84687040628909. The reversal of 84687040628893 is 39882604078648.

It is a cyclic number.

It is not a de Polignac number, because 84687040628893 - 2¹⁷ = 84687040497821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84687040628843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19573543 + ... + 23505268.

It is an arithmetic number, because the mean of its divisors is an integer number (5642333559324).

Almost surely, 2^{84687040628893} is an apocalyptic number.

It is an amenable number.

84687040628893 is a deficient number, since it is larger than the sum of its proper divisors (5590296320291).

84687040628893 is a wasteful number, since it uses less digits than its factorization.

84687040628893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43079612.

The product of its (nonzero) digits is 891813888, while the sum is 73.

The spelling of 84687040628893 in words is "eighty-four trillion, six hundred eighty-seven billion, forty million, six hundred twenty-eight thousand, eight hundred ninety-three".