6518178858212 has 12 divisors (see below), whose sum is σ = 13036357716480. Its totient is φ = 2793505224936.

The previous prime is 6518178858203. The next prime is 6518178858221. The reversal of 6518178858212 is 2128588718156.

It is an interprime number because it is at equal distance from previous prime (6518178858203) and next prime (6518178858221).

6518178858212 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116396051012 + ... + 116396051067.

It is an arithmetic number, because the mean of its divisors is an integer number (1086363143040).

Almost surely, 2^{6518178858212} is an apocalyptic number.

It is an amenable number.

6518178858212 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.

6518178858212 is a wasteful number, since it uses less digits than its factorization.

6518178858212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232792102090 (or 232792102088 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 62.

The spelling of 6518178858212 in words is "six trillion, five hundred eighteen billion, one hundred seventy-eight million, eight hundred fifty-eight thousand, two hundred twelve".