1180115209728 has 360 divisors, whose sum is σ = 4266732958488. Its totient is φ = 311238402048.

The previous prime is 1180115209657. The next prime is 1180115209783. The reversal of 1180115209728 is 8279025110811.

1180115209728 is a `hidden beast` number, since 1 + 1 + 8 + 0 + 11 + 520 + 97 + 28 = 666.

It is a super-2 number, since 2×1180115209728² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2734275 + ... + 3136317.

Almost surely, 2^{1180115209728} is an apocalyptic number.

1180115209728 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 1180115209728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133366479244).

1180115209728 is an abundant number, since it is smaller than the sum of its proper divisors (3086617748760).

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

1180115209728 is a wasteful number, since it uses less digits than its factorization.

1180115209728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402094 (or 402068 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 45.

The spelling of 1180115209728 in words is "one trillion, one hundred eighty billion, one hundred fifteen million, two hundred nine thousand, seven hundred twenty-eight".