3878365784 has 8 divisors (see below), whose sum is σ = 7271935860. Its totient is φ = 1939182888.

The previous prime is 3878365769. The next prime is 3878365807. The reversal of 3878365784 is 4875638783.

3878365784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242397854 + ... + 242397869.

Almost surely, 2^3878365784 is an apocalyptic number.

It is an amenable number.

3878365784 is a deficient number, since it is larger than the sum of its proper divisors (3393570076).

3878365784 is a wasteful number, since it uses less digits than its factorization.

3878365784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484795729 (or 484795725 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 59.

The square root of 3878365784 is about 62276.5267496510. The cubic root of 3878365784 is about 1571.1449562583.

The spelling of 3878365784 in words is "three billion, eight hundred seventy-eight million, three hundred sixty-five thousand, seven hundred eighty-four".