1147840136671 has 4 divisors (see below), whose sum is σ = 1161669535992. Its totient is φ = 1134010737352.

The previous prime is 1147840136633. The next prime is 1147840136693. The reversal of 1147840136671 is 1766310487411.

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

It is a cyclic number.

It is not a de Polignac number, because 1147840136671 - 2²¹ = 1147838039519 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 (1147840136621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6914699536 + ... + 6914699701.

It is an arithmetic number, because the mean of its divisors is an integer number (290417383998).

Almost surely, 2^{1147840136671} is an apocalyptic number.

1147840136671 is a deficient number, since it is larger than the sum of its proper divisors (13829399321).

1147840136671 is an equidigital number, since it uses as much as digits as its factorization.

1147840136671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829399320.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 1147840136671 in words is "one trillion, one hundred forty-seven billion, eight hundred forty million, one hundred thirty-six thousand, six hundred seventy-one".