39623234449 has 4 divisors (see below), whose sum is σ = 41954012964. Its totient is φ = 37292455936.

The previous prime is 39623234411. The next prime is 39623234489. The reversal of 39623234449 is 94443232693.

39623234449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94443232693 = 121711 ⋅775963.

It can be written as a sum of positive squares in 2 ways, for example, as 27293352849 + 12329881600 = 165207^2 + 111040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39623234449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39623234489) 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, 1165389232 + ... + 1165389265.

It is an arithmetic number, because the mean of its divisors is an integer number (10488503241).

Almost surely, 2^39623234449 is an apocalyptic number.

It is an amenable number.

39623234449 is a deficient number, since it is larger than the sum of its proper divisors (2330778515).

39623234449 is a wasteful number, since it uses less digits than its factorization.

39623234449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330778514.

The product of its digits is 3359232, while the sum is 49.

The spelling of 39623234449 in words is "thirty-nine billion, six hundred twenty-three million, two hundred thirty-four thousand, four hundred forty-nine".