38278789308 has 72 divisors (see below), whose sum is σ = 100469678400. Its totient is φ = 12273722496.

The previous prime is 38278789303. The next prime is 38278789333. The reversal of 38278789308 is 80398787283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38278789303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212685 + ... + 348987.

It is an arithmetic number, because the mean of its divisors is an integer number (1395412200).

Almost surely, 2^38278789308 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 38278789308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50234839200).

38278789308 is an abundant number, since it is smaller than the sum of its proper divisors (62190889092).

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

38278789308 is a wasteful number, since it uses less digits than its factorization.

38278789308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136611 (or 136606 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 38278789308 in words is "thirty-eight billion, two hundred seventy-eight million, seven hundred eighty-nine thousand, three hundred eight".