218609485248 has 448 divisors, whose sum is σ = 748327403520. Its totient is φ = 54652416000.

The previous prime is 218609485247. The next prime is 218609485253. The reversal of 218609485248 is 842584906812.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218609485243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189929473 + ... + 189930623.

Almost surely, 2^218609485248 is an apocalyptic number.

218609485248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218609485248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374163701760).

218609485248 is an abundant number, since it is smaller than the sum of its proper divisors (529717918272).

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

218609485248 is a wasteful number, since it uses less digits than its factorization.

218609485248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 57.

The spelling of 218609485248 in words is "two hundred eighteen billion, six hundred nine million, four hundred eighty-five thousand, two hundred forty-eight".