1197763273728 has 528 divisors, whose sum is σ = 4017145466880. Its totient is φ = 336666673152.

The previous prime is 1197763273687. The next prime is 1197763273747. The reversal of 1197763273728 is 8273723677911.

1197763273728 is a `hidden beast` number, since 1 + 197 + 76 + 3 + 2 + 7 + 372 + 8 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2500549393 + ... + 2500549871.

Almost surely, 2^{1197763273728} is an apocalyptic number.

1197763273728 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 1197763273728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2008572733440).

1197763273728 is an abundant number, since it is smaller than the sum of its proper divisors (2819382193152).

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

1197763273728 is a wasteful number, since it uses less digits than its factorization.

1197763273728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1041 counting only the distinct ones).

The product of its digits is 37340352, while the sum is 63.

The spelling of 1197763273728 in words is "one trillion, one hundred ninety-seven billion, seven hundred sixty-three million, two hundred seventy-three thousand, seven hundred twenty-eight".