1188376475681 has 8 divisors (see below), whose sum is σ = 1263818717280. Its totient is φ = 1114223845248.

The previous prime is 1188376475653. The next prime is 1188376475687. The reversal of 1188376475681 is 1865746738811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1188376475681 - 2¹⁰ = 1188376474657 is a prime.

It is a super-2 number, since 2×1188376475681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1188376475687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322400891 + ... + 322404576.

It is an arithmetic number, because the mean of its divisors is an integer number (157977339660).

Almost surely, 2^{1188376475681} is an apocalyptic number.

It is an amenable number.

1188376475681 is a deficient number, since it is larger than the sum of its proper divisors (75442241599).

1188376475681 is an equidigital number, since it uses as much as digits as its factorization.

1188376475681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644805583.

The product of its digits is 54190080, while the sum is 65.

The spelling of 1188376475681 in words is "one trillion, one hundred eighty-eight billion, three hundred seventy-six million, four hundred seventy-five thousand, six hundred eighty-one".