3878165500 has 96 divisors (see below), whose sum is σ = 9326116800. Its totient is φ = 1397088000.

The previous prime is 3878165497. The next prime is 3878165513. The reversal of 3878165500 is 55618783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 596266 + ... + 602734.

It is an arithmetic number, because the mean of its divisors is an integer number (97147050).

Almost surely, 2^3878165500 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 3878165500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4663058400).

3878165500 is an abundant number, since it is smaller than the sum of its proper divisors (5447951300).

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

3878165500 is a wasteful number, since it uses less digits than its factorization.

3878165500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608 (or 6596 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 3878165500 is about 62274.9187072934. The cubic root of 3878165500 is about 1571.1179104499.

The spelling of 3878165500 in words is "three billion, eight hundred seventy-eight million, one hundred sixty-five thousand, five hundred".