78585446586 has 32 divisors (see below), whose sum is σ = 162262384128. Its totient is φ = 25346790720.

The previous prime is 78585446573. The next prime is 78585446587. The reversal of 78585446586 is 68564458587.

It is a super-3 number, since 3×78585446586³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (78585446587) 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, 1652980 + ... + 1699856.

It is an arithmetic number, because the mean of its divisors is an integer number (5070699504).

Almost surely, 2^78585446586 is an apocalyptic number.

78585446586 is an abundant number, since it is smaller than the sum of its proper divisors (83676937542).

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

78585446586 is a wasteful number, since it uses less digits than its factorization.

78585446586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55926.

The product of its digits is 258048000, while the sum is 66.

The spelling of 78585446586 in words is "seventy-eight billion, five hundred eighty-five million, four hundred forty-six thousand, five hundred eighty-six".