27068021743 has 6 divisors (see below), whose sum is σ = 31487290656. Its totient is φ = 23201161452.

The previous prime is 27068021713. The next prime is 27068021749. The reversal of 27068021743 is 34712086072.

It is a de Polignac number, because none of the positive numbers 2^k-27068021743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27068021696 and 27068021705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27068021749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276204255 + ... + 276204352.

It is an arithmetic number, because the mean of its divisors is an integer number (5247881776).

Almost surely, 2^27068021743 is an apocalyptic number.

27068021743 is a deficient number, since it is larger than the sum of its proper divisors (4419268913).

27068021743 is an equidigital number, since it uses as much as digits as its factorization.

27068021743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552408621 (or 552408614 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 27068021743 in words is "twenty-seven billion, sixty-eight million, twenty-one thousand, seven hundred forty-three".