13785718578 has 8 divisors (see below), whose sum is σ = 27571437168. Its totient is φ = 4595239524.

The previous prime is 13785718577. The next prime is 13785718579. The reversal of 13785718578 is 87581758731.

It is an interprime number because it is at equal distance from previous prime (13785718577) and next prime (13785718579).

It is a sphenic number, since it is the product of 3 distinct primes.

13785718578 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13785718577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148809876 + ... + 1148809887.

It is an arithmetic number, because the mean of its divisors is an integer number (3446429646).

Almost surely, 2^13785718578 is an apocalyptic number.

13785718578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13785718578 is a wasteful number, since it uses less digits than its factorization.

13785718578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297619768.

The product of its digits is 13171200, while the sum is 60.

The spelling of 13785718578 in words is "thirteen billion, seven hundred eighty-five million, seven hundred eighteen thousand, five hundred seventy-eight".