1243198870848 has 336 divisors, whose sum is σ = 4268473844544. Its totient is φ = 354565693440.

The previous prime is 1243198870829. The next prime is 1243198870853. The reversal of 1243198870848 is 8480788913421.

1243198870848 is a `hidden beast` number, since 1 + 2 + 431 + 98 + 8 + 70 + 8 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2694486 + ... + 3121962.

It is an arithmetic number, because the mean of its divisors is an integer number (12703791204).

Almost surely, 2^{1243198870848} is an apocalyptic number.

1243198870848 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 1243198870848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2134236922272).

1243198870848 is an abundant number, since it is smaller than the sum of its proper divisors (3025274973696).

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

1243198870848 is a wasteful number, since it uses less digits than its factorization.

1243198870848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427532 (or 427510 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 63.

The spelling of 1243198870848 in words is "one trillion, two hundred forty-three billion, one hundred ninety-eight million, eight hundred seventy thousand, eight hundred forty-eight".