38604778500 has 96 divisors (see below), whose sum is σ = 112464398592. Its totient is φ = 10290278400.

The previous prime is 38604778451. The next prime is 38604778501. The reversal of 38604778500 is 587740683.

It is a self number, because there is not a number n which added to its sum of digits gives 38604778500.

It is not an unprimeable number, because it can be changed into a prime (38604778501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5286852 + ... + 5294148.

It is an arithmetic number, because the mean of its divisors is an integer number (1171504152).

Almost surely, 2^38604778500 is an apocalyptic number.

38604778500 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 38604778500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56232199296).

38604778500 is an abundant number, since it is smaller than the sum of its proper divisors (73859620092).

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

38604778500 is a wasteful number, since it uses less digits than its factorization.

38604778500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10846 (or 10834 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 38604778500 in words is "thirty-eight billion, six hundred four million, seven hundred seventy-eight thousand, five hundred".