39789982920 has 128 divisors (see below), whose sum is σ = 122254387200. Its totient is φ = 10354708224.

The previous prime is 39789982871. The next prime is 39789982979. The reversal of 39789982920 is 2928998793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7339971 + ... + 7345389.

It is an arithmetic number, because the mean of its divisors is an integer number (955112400).

Almost surely, 2^39789982920 is an apocalyptic number.

39789982920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39789982920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61127193600).

39789982920 is an abundant number, since it is smaller than the sum of its proper divisors (82464404280).

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

39789982920 is a wasteful number, since it uses less digits than its factorization.

39789982920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899 (or 6895 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 66.

The spelling of 39789982920 in words is "thirty-nine billion, seven hundred eighty-nine million, nine hundred eighty-two thousand, nine hundred twenty".