1208421553248 has 540 divisors, whose sum is σ = 4476723381900. Its totient is φ = 318698924544.

The previous prime is 1208421553231. The next prime is 1208421553271. The reversal of 1208421553248 is 8423551248021.

1208421553248 is a `hidden beast` number, since 1 + 20 + 8 + 42 + 15 + 532 + 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 89 ways as a sum of consecutive naturals, for example, 21436203 + ... + 21492501.

It is an arithmetic number, because the mean of its divisors is an integer number (8290228485).

Almost surely, 2^{1208421553248} is an apocalyptic number.

1208421553248 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 1208421553248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238361690950).

1208421553248 is an abundant number, since it is smaller than the sum of its proper divisors (3268301828652).

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

1208421553248 is a wasteful number, since it uses less digits than its factorization.

1208421553248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56361 (or 56324 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 1208421553248 in words is "one trillion, two hundred eight billion, four hundred twenty-one million, five hundred fifty-three thousand, two hundred forty-eight".