3878047542 has 16 divisors (see below), whose sum is σ = 7757148672. Its totient is φ = 1292506920.

The previous prime is 3878047513. The next prime is 3878047543. The reversal of 3878047542 is 2457408783.

It is a junction number, because it is equal to n+sod(n) for n = 3878047491 and 3878047500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878047543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8823 + ... + 88509.

It is an arithmetic number, because the mean of its divisors is an integer number (484821792).

Almost surely, 2^3878047542 is an apocalyptic number.

3878047542 is an abundant number, since it is smaller than the sum of its proper divisors (3879101130).

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

3878047542 is a wasteful number, since it uses less digits than its factorization.

3878047542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87803.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The square root of 3878047542 is about 62273.9716253910. The cubic root of 3878047542 is about 1571.1019812857.

The spelling of 3878047542 in words is "three billion, eight hundred seventy-eight million, forty-seven thousand, five hundred forty-two".