27491283743 has 12 divisors (see below), whose sum is σ = 34886898792. Its totient is φ = 21421779120.

The previous prime is 27491283733. The next prime is 27491283791. The reversal of 27491283743 is 34738219472.

It is a happy number.

It is not a de Polignac number, because 27491283743 - 2¹⁴ = 27491267359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27491283691 and 27491283700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27491283733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25501580 + ... + 25502657.

It is an arithmetic number, because the mean of its divisors is an integer number (2907241566).

Almost surely, 2^27491283743 is an apocalyptic number.

27491283743 is a deficient number, since it is larger than the sum of its proper divisors (7395615049).

27491283743 is a wasteful number, since it uses less digits than its factorization.

27491283743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51004262 (or 51004255 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The spelling of 27491283743 in words is "twenty-seven billion, four hundred ninety-one million, two hundred eighty-three thousand, seven hundred forty-three".