1228249870848 has 480 divisors, whose sum is σ = 4759486123392. Its totient is φ = 294484377600.

The previous prime is 1228249870847. The next prime is 1228249870901. The reversal of 1228249870848 is 8480789428221.

1228249870848 is a `hidden beast` number, since 1 + 22 + 82 + 498 + 7 + 0 + 8 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1228249870847) 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 47 ways as a sum of consecutive naturals, for example, 4479468 + ... + 4745748.

Almost surely, 2^{1228249870848} is an apocalyptic number.

1228249870848 is a gapful number since it is divisible by the number (18) 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 1228249870848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379743061696).

1228249870848 is an abundant number, since it is smaller than the sum of its proper divisors (3531236252544).

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

1228249870848 is a wasteful number, since it uses less digits than its factorization.

1228249870848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266336 (or 266317 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 63.

The spelling of 1228249870848 in words is "one trillion, two hundred twenty-eight billion, two hundred forty-nine million, eight hundred seventy thousand, eight hundred forty-eight".