39633408387049 has 3 divisors (see below), whose sum is σ = 39633414682557. Its totient is φ = 39633402091542.

The previous prime is 39633408387043. The next prime is 39633408387073. The reversal of 39633408387049 is 94078380433693.

The square root of 39633408387049 is 6295507.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 39633408387049 - 2¹¹ = 39633408385001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39633408387043) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3147754 + ... + 9443260.

It is an arithmetic number, because the mean of its divisors is an integer number (13211138227519).

Almost surely, 2^{39633408387049} is an apocalyptic number.

39633408387049 is the 6295507-th square number.

39633408387049 is the 3147754-th centered octagonal number.

It is an amenable number.

39633408387049 is a deficient number, since it is larger than the sum of its proper divisors (6295508).

39633408387049 is an frugal number, since it uses more digits than its factorization.

39633408387049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591014 (or 6295507 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 67.

The spelling of 39633408387049 in words is "thirty-nine trillion, six hundred thirty-three billion, four hundred eight million, three hundred eighty-seven thousand, forty-nine".