39445808856 has 64 divisors (see below), whose sum is σ = 101183808000. Its totient is φ = 12807704448.

The previous prime is 39445808851. The next prime is 39445808873. The reversal of 39445808856 is 65880854493.

39445808856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 39445808856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39445808851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326670 + ... + 430818.

It is an arithmetic number, because the mean of its divisors is an integer number (1580997000).

Almost surely, 2^39445808856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39445808856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50591904000).

39445808856 is an abundant number, since it is smaller than the sum of its proper divisors (61737999144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39445808856 is a wasteful number, since it uses less digits than its factorization.

39445808856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104568 (or 104564 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 39445808856 in words is "thirty-nine billion, four hundred forty-five million, eight hundred eight thousand, eight hundred fifty-six".