78467846578485 has 32 divisors (see below), whose sum is σ = 154521297880320. Its totient is φ = 33111706687488.

The previous prime is 78467846578481. The next prime is 78467846578493. The reversal of 78467846578485 is 58487564876487.

It is not a de Polignac number, because 78467846578485 - 2² = 78467846578481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78467846578481) 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, 28742799580 + ... + 28742802309.

It is an arithmetic number, because the mean of its divisors is an integer number (4828790558760).

Almost surely, 2^{78467846578485} is an apocalyptic number.

It is an amenable number.

78467846578485 is a deficient number, since it is larger than the sum of its proper divisors (76053451301835).

78467846578485 is a wasteful number, since it uses less digits than its factorization.

78467846578485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57485601917.

The product of its digits is 80923852800, while the sum is 87.

The spelling of 78467846578485 in words is "seventy-eight trillion, four hundred sixty-seven billion, eight hundred forty-six million, five hundred seventy-eight thousand, four hundred eighty-five".