3878854047 has 40 divisors (see below), whose sum is σ = 6107615360. Its totient is φ = 2446465680.

The previous prime is 3878854039. The next prime is 3878854069. The reversal of 3878854047 is 7404588783.

It is a happy number.

It is not a de Polignac number, because 3878854047 - 2³ = 3878854039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3878853984 and 3878854002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878854097) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1634772 + ... + 1637142.

It is an arithmetic number, because the mean of its divisors is an integer number (152690384).

Almost surely, 2^3878854047 is an apocalyptic number.

3878854047 is a deficient number, since it is larger than the sum of its proper divisors (2228761313).

3878854047 is a wasteful number, since it uses less digits than its factorization.

3878854047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The square root of 3878854047 is about 62280.4467469526. The cubic root of 3878854047 is about 1571.2108860684.

The spelling of 3878854047 in words is "three billion, eight hundred seventy-eight million, eight hundred fifty-four thousand, forty-seven".