3854139867888 has 40 divisors (see below), whose sum is σ = 9957528177408. Its totient is φ = 1284584233152.

The previous prime is 3854139867859. The next prime is 3854139867899. The reversal of 3854139867888 is 8887689314583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3549606 + ... + 4506437.

Almost surely, 2^{3854139867888} is an apocalyptic number.

It is an amenable number.

3854139867888 is an abundant number, since it is smaller than the sum of its proper divisors (6103388309520).

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

3854139867888 is a wasteful number, since it uses less digits than its factorization.

3854139867888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8066021 (or 8066015 counting only the distinct ones).

The product of its digits is 2229534720, while the sum is 78.

The spelling of 3854139867888 in words is "three trillion, eight hundred fifty-four billion, one hundred thirty-nine million, eight hundred sixty-seven thousand, eight hundred eighty-eight".