3878008784 has 80 divisors (see below), whose sum is σ = 8290167312. Its totient is φ = 1746468864.

The previous prime is 3878008723. The next prime is 3878008807. The reversal of 3878008784 is 4878008783.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 510760000 + 3367248784 = 22600^2 + 58028^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471532 + ... + 1474164.

Almost surely, 2^3878008784 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 3878008784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4145083656).

3878008784 is an abundant number, since it is smaller than the sum of its proper divisors (4412158528).

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

3878008784 is a wasteful number, since it uses less digits than its factorization.

3878008784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2818 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The square root of 3878008784 is about 62273.6604352113. The cubic root of 3878008784 is about 1571.0967472968.

Subtracting 3878008784 from its reverse (4878008783), we obtain a palindrome (999999999).

The spelling of 3878008784 in words is "three billion, eight hundred seventy-eight million, eight thousand, seven hundred eighty-four".