39247324505 has 4 divisors (see below), whose sum is σ = 47096789412. Its totient is φ = 31397859600.

The previous prime is 39247324489. The next prime is 39247324513. The reversal of 39247324505 is 50542374293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50542374293 = 61 ⋅828563513.

It can be written as a sum of positive squares in 2 ways, for example, as 16578107536 + 22669216969 = 128756^2 + 150563^2 .

It is not a de Polignac number, because 39247324505 - 2⁴ = 39247324489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3924732446 + ... + 3924732455.

It is an arithmetic number, because the mean of its divisors is an integer number (11774197353).

Almost surely, 2^39247324505 is an apocalyptic number.

It is an amenable number.

39247324505 is a deficient number, since it is larger than the sum of its proper divisors (7849464907).

39247324505 is an equidigital number, since it uses as much as digits as its factorization.

39247324505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849464906.

The product of its (nonzero) digits is 907200, while the sum is 44.

Adding to 39247324505 its reverse (50542374293), we get a palindrome (89789698798).

The spelling of 39247324505 in words is "thirty-nine billion, two hundred forty-seven million, three hundred twenty-four thousand, five hundred five".