248197984435818 has 48 divisors (see below), whose sum is σ = 558373878901800. Its totient is φ = 79582860067200.

The previous prime is 248197984435813. The next prime is 248197984435829. The reversal of 248197984435818 is 818534489791842.

248197984435818 is a `hidden beast` number, since 2 + 4 + 8 + 1 + 9 + 7 + 98 + 443 + 5 + 81 + 8 = 666.

248197984435818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 229406253622569 + 18791730813249 = 15146163^2 + 4334943^2 .

It is a super-2 number, since 2×248197984435818² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (248197984435813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 883642233 + ... + 883923068.

Almost surely, 2^{248197984435818} is an apocalyptic number.

248197984435818 is an abundant number, since it is smaller than the sum of its proper divisors (310175894465982).

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

248197984435818 is a wasteful number, since it uses less digits than its factorization.

248197984435818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767565607 (or 1767565604 counting only the distinct ones).

The product of its digits is 4459069440, while the sum is 81.

The spelling of 248197984435818 in words is "two hundred forty-eight trillion, one hundred ninety-seven billion, nine hundred eighty-four million, four hundred thirty-five thousand, eight hundred eighteen".