1147989553200 has 1920 divisors, whose sum is σ = 5111572838400. Its totient is φ = 238878720000.

The previous prime is 1147989553153. The next prime is 1147989553283. The reversal of 1147989553200 is 23559897411.

It is a happy number.

1147989553200 is a `hidden beast` number, since 1 + 1 + 4 + 7 + 9 + 89 + 553 + 2 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5948132304 + ... + 5948132496.

It is an arithmetic number, because the mean of its divisors is an integer number (2662277520).

Almost surely, 2^{1147989553200} is an apocalyptic number.

1147989553200 is a gapful number since it is divisible by the number (10) 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 1147989553200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2555786419200).

1147989553200 is an abundant number, since it is smaller than the sum of its proper divisors (3963583285200).

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

1147989553200 is a wasteful number, since it uses less digits than its factorization.

1147989553200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 1147989553200 in words is "one trillion, one hundred forty-seven billion, nine hundred eighty-nine million, five hundred fifty-three thousand, two hundred".