3869442867878 has 32 divisors (see below), whose sum is σ = 6683803776000. Its totient is φ = 1645757223264.

The previous prime is 3869442867847. The next prime is 3869442867883. The reversal of 3869442867878 is 8787682449683.

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, 701450 + ... + 2868957.

It is an arithmetic number, because the mean of its divisors is an integer number (208868868000).

Almost surely, 2^{3869442867878} is an apocalyptic number.

3869442867878 is a deficient number, since it is larger than the sum of its proper divisors (2814360908122).

3869442867878 is a wasteful number, since it uses less digits than its factorization.

3869442867878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571004.

The product of its digits is 6242697216, while the sum is 80.

The spelling of 3869442867878 in words is "three trillion, eight hundred sixty-nine billion, four hundred forty-two million, eight hundred sixty-seven thousand, eight hundred seventy-eight".