27403323743 has 4 divisors (see below), whose sum is σ = 28845603960. Its totient is φ = 25961043528.

The previous prime is 27403323733. The next prime is 27403323751. The reversal of 27403323743 is 34732330472.

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

It is not a de Polignac number, because 27403323743 - 2¹⁰ = 27403322719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27403323697 and 27403323706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27403323733) 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, 721140080 + ... + 721140117.

It is an arithmetic number, because the mean of its divisors is an integer number (7211400990).

Almost surely, 2^27403323743 is an apocalyptic number.

27403323743 is a deficient number, since it is larger than the sum of its proper divisors (1442280217).

27403323743 is a wasteful number, since it uses less digits than its factorization.

27403323743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442280216.

The product of its (nonzero) digits is 254016, while the sum is 38.

The spelling of 27403323743 in words is "twenty-seven billion, four hundred three million, three hundred twenty-three thousand, seven hundred forty-three".