78468581466 has 64 divisors (see below), whose sum is σ = 196786454400. Its totient is φ = 22958409600.

The previous prime is 78468581461. The next prime is 78468581467. The reversal of 78468581466 is 66418586487.

78468581466 is a `hidden beast` number, since 7 + 8 + 4 + 6 + 8 + 581 + 46 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (78468581461) 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, 2260395 + ... + 2294846.

It is an arithmetic number, because the mean of its divisors is an integer number (3074788350).

Almost surely, 2^78468581466 is an apocalyptic number.

78468581466 is an abundant number, since it is smaller than the sum of its proper divisors (118317872934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78468581466 is a wasteful number, since it uses less digits than its factorization.

78468581466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555292 (or 4555286 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 78468581466 in words is "seventy-eight billion, four hundred sixty-eight million, five hundred eighty-one thousand, four hundred sixty-six".