39444679167225 has 48 divisors (see below), whose sum is σ = 67592251467840. Its totient is φ = 20280804883200.

The previous prime is 39444679167211. The next prime is 39444679167247. The reversal of 39444679167225 is 52276197644493.

It is not a de Polignac number, because 39444679167225 - 2⁴ = 39444679167209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39444679167225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64900731 + ... + 65505680.

It is an arithmetic number, because the mean of its divisors is an integer number (1408171905580).

Almost surely, 2^{39444679167225} is an apocalyptic number.

It is an amenable number.

39444679167225 is a deficient number, since it is larger than the sum of its proper divisors (28147572300615).

39444679167225 is a wasteful number, since it uses less digits than its factorization.

39444679167225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130406570 (or 130406565 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 69.

The spelling of 39444679167225 in words is "thirty-nine trillion, four hundred forty-four billion, six hundred seventy-nine million, one hundred sixty-seven thousand, two hundred twenty-five".