3840218400887 has 16 divisors (see below), whose sum is σ = 4253879174688. Its totient is φ = 3437477268480.

The previous prime is 3840218400877. The next prime is 3840218400911. The reversal of 3840218400887 is 7880048120483.

It is a cyclic number.

It is not a de Polignac number, because 3840218400887 - 2²⁶ = 3840151292023 is a prime.

It is a super-2 number, since 2×3840218400887² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840218400877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3556148 + ... + 4508505.

It is an arithmetic number, because the mean of its divisors is an integer number (265867448418).

Almost surely, 2^{3840218400887} is an apocalyptic number.

3840218400887 is a deficient number, since it is larger than the sum of its proper divisors (413660773801).

3840218400887 is a wasteful number, since it uses less digits than its factorization.

3840218400887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8065330.

The product of its (nonzero) digits is 2752512, while the sum is 53.

The spelling of 3840218400887 in words is "three trillion, eight hundred forty billion, two hundred eighteen million, four hundred thousand, eight hundred eighty-seven".