1153981687327 has 4 divisors (see below), whose sum is σ = 1318836214096. Its totient is φ = 989127160560.

The previous prime is 1153981687307. The next prime is 1153981687357. The reversal of 1153981687327 is 7237861893511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1153981687327 - 2¹¹ = 1153981685279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153981687307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82427263374 + ... + 82427263387.

It is an arithmetic number, because the mean of its divisors is an integer number (329709053524).

Almost surely, 2^{1153981687327} is an apocalyptic number.

1153981687327 is a deficient number, since it is larger than the sum of its proper divisors (164854526769).

1153981687327 is an equidigital number, since it uses as much as digits as its factorization.

1153981687327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164854526768.

The product of its digits is 15240960, while the sum is 61.

The spelling of 1153981687327 in words is "one trillion, one hundred fifty-three billion, nine hundred eighty-one million, six hundred eighty-seven thousand, three hundred twenty-seven".