3874128878 has 32 divisors (see below), whose sum is σ = 6557220864. Its totient is φ = 1706733952.

The previous prime is 3874128871. The next prime is 3874128941. The reversal of 3874128878 is 8788214783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874128871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15950 + ... + 89457.

It is an arithmetic number, because the mean of its divisors is an integer number (204913152).

Almost surely, 2^3874128878 is an apocalyptic number.

3874128878 is a deficient number, since it is larger than the sum of its proper divisors (2683091986).

3874128878 is a wasteful number, since it uses less digits than its factorization.

3874128878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105496.

The product of its digits is 4816896, while the sum is 56.

The square root of 3874128878 is about 62242.5005763747. The cubic root of 3874128878 is about 1570.5726173405.

The spelling of 3874128878 in words is "three billion, eight hundred seventy-four million, one hundred twenty-eight thousand, eight hundred seventy-eight".