39444209077 has 32 divisors (see below), whose sum is σ = 49764040704. Its totient is φ = 30430987200.

The previous prime is 39444209069. The next prime is 39444209093. The reversal of 39444209077 is 77090244493.

It is a cyclic number.

It is not a de Polignac number, because 39444209077 - 2³ = 39444209069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39444209077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39444209177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1142052 + ... + 1176082.

It is an arithmetic number, because the mean of its divisors is an integer number (1555126272).

Almost surely, 2^39444209077 is an apocalyptic number.

It is an amenable number.

39444209077 is a deficient number, since it is larger than the sum of its proper divisors (10319831627).

39444209077 is a wasteful number, since it uses less digits than its factorization.

39444209077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34369.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 39444209077 in words is "thirty-nine billion, four hundred forty-four million, two hundred nine thousand, seventy-seven".