27317424747 has 4 divisors (see below), whose sum is σ = 36423233000. Its totient is φ = 18211616496.

The previous prime is 27317424733. The next prime is 27317424767. The reversal of 27317424747 is 74742471372.

It is a happy number.

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

It is not a de Polignac number, because 27317424747 - 2⁶ = 27317424683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27317424696 and 27317424705.

It is not an unprimeable number, because it can be changed into a prime (27317424767) 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, 4552904122 + ... + 4552904127.

It is an arithmetic number, because the mean of its divisors is an integer number (9105808250).

Almost surely, 2^27317424747 is an apocalyptic number.

27317424747 is a deficient number, since it is larger than the sum of its proper divisors (9105808253).

27317424747 is an equidigital number, since it uses as much as digits as its factorization.

27317424747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105808252.

The product of its digits is 1843968, while the sum is 48.

The spelling of 27317424747 in words is "twenty-seven billion, three hundred seventeen million, four hundred twenty-four thousand, seven hundred forty-seven".