1186453680261 has 8 divisors (see below), whose sum is σ = 1585922973024. Its totient is φ = 788976753840.

The previous prime is 1186453680169. The next prime is 1186453680263. The reversal of 1186453680261 is 1620863546811.

It is a happy number.

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

It is not a de Polignac number, because 1186453680261 - 2¹⁴ = 1186453663877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1186453680263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498090195 + ... + 498092576.

It is an arithmetic number, because the mean of its divisors is an integer number (198240371628).

Almost surely, 2^{1186453680261} is an apocalyptic number.

It is an amenable number.

1186453680261 is a deficient number, since it is larger than the sum of its proper divisors (399469292763).

1186453680261 is an equidigital number, since it uses as much as digits as its factorization.

1186453680261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996183171.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 1186453680261 in words is "one trillion, one hundred eighty-six billion, four hundred fifty-three million, six hundred eighty thousand, two hundred sixty-one".