39438202986 has 384 divisors, whose sum is σ = 117715852800. Its totient is φ = 9249085440.

The previous prime is 39438202963. The next prime is 39438203029. The reversal of 39438202986 is 68920283493.

It is a happy number.

39438202986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 33393316 + ... + 33394496.

It is an arithmetic number, because the mean of its divisors is an integer number (306551700).

Almost surely, 2^39438202986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39438202986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58857926400).

39438202986 is an abundant number, since it is smaller than the sum of its proper divisors (78277649814).

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

39438202986 is a wasteful number, since it uses less digits than its factorization.

39438202986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 39438202986 in words is "thirty-nine billion, four hundred thirty-eight million, two hundred two thousand, nine hundred eighty-six".