218925464496 has 80 divisors (see below), whose sum is σ = 579414236544. Its totient is φ = 71191314432.

The previous prime is 218925464477. The next prime is 218925464503. The reversal of 218925464496 is 694464529812.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642800 + ... + 1771056.

Almost surely, 2^218925464496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218925464496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289707118272).

218925464496 is an abundant number, since it is smaller than the sum of its proper divisors (360488772048).

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

218925464496 is a wasteful number, since it uses less digits than its factorization.

218925464496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129138 (or 129132 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The spelling of 218925464496 in words is "two hundred eighteen billion, nine hundred twenty-five million, four hundred sixty-four thousand, four hundred ninety-six".