3859418841840 has 120 divisors (see below), whose sum is σ = 12961842204480. Its totient is φ = 1029128550912.

The previous prime is 3859418841833. The next prime is 3859418841851. The reversal of 3859418841840 is 481488149583.

3859418841840 is a `hidden beast` number, since 3 + 85 + 94 + 18 + 8 + 418 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×3859418841840² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16181694 + ... + 16418466.

It is an arithmetic number, because the mean of its divisors is an integer number (108015351704).

Almost surely, 2^{3859418841840} is an apocalyptic number.

3859418841840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3859418841840 is an abundant number, since it is smaller than the sum of its proper divisors (9102423362640).

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

3859418841840 is a wasteful number, since it uses less digits than its factorization.

3859418841840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259431 (or 259422 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 63.

The spelling of 3859418841840 in words is "three trillion, eight hundred fifty-nine billion, four hundred eighteen million, eight hundred forty-one thousand, eight hundred forty".