1197454389120 has 1536 divisors, whose sum is σ = 4884927989760. Its totient is φ = 277762867200.

The previous prime is 1197454389119. The next prime is 1197454389139. The reversal of 1197454389120 is 219834547911.

1197454389120 is a `hidden beast` number, since 1 + 1 + 9 + 7 + 4 + 543 + 8 + 91 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4261403380 + ... + 4261403660.

It is an arithmetic number, because the mean of its divisors is an integer number (3180291660).

Almost surely, 2^{1197454389120} is an apocalyptic number.

1197454389120 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 1197454389120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442463994880).

1197454389120 is an abundant number, since it is smaller than the sum of its proper divisors (3687473600640).

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

1197454389120 is a wasteful number, since it uses less digits than its factorization.

1197454389120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1197454389120 in words is "one trillion, one hundred ninety-seven billion, four hundred fifty-four million, three hundred eighty-nine thousand, one hundred twenty".