39859518048 has 144 divisors (see below), whose sum is σ = 124545072960. Its totient is φ = 11123529984.

The previous prime is 39859517989. The next prime is 39859518067. The reversal of 39859518048 is 84081595893.

It is a junction number, because it is equal to n+sod(n) for n = 39859517982 and 39859518000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103743 + ... + 300801.

It is an arithmetic number, because the mean of its divisors is an integer number (864896340).

Almost surely, 2^39859518048 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 39859518048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62272536480).

39859518048 is an abundant number, since it is smaller than the sum of its proper divisors (84685554912).

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

39859518048 is a wasteful number, since it uses less digits than its factorization.

39859518048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197129 (or 197114 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 60.

The spelling of 39859518048 in words is "thirty-nine billion, eight hundred fifty-nine million, five hundred eighteen thousand, forty-eight".