3856481268 has 12 divisors (see below), whose sum is σ = 8998456320. Its totient is φ = 1285493752.

The previous prime is 3856481249. The next prime is 3856481287. The reversal of 3856481268 is 8621846583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3856481249) and next prime (3856481287).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 3856481268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160686708 + ... + 160686731.

It is an arithmetic number, because the mean of its divisors is an integer number (749871360).

Almost surely, 2^3856481268 is an apocalyptic number.

It is an amenable number.

3856481268 is an abundant number, since it is smaller than the sum of its proper divisors (5141975052).

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

3856481268 is a wasteful number, since it uses less digits than its factorization.

3856481268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321373446 (or 321373444 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 3856481268 is about 62100.5738137741. The cubic root of 3856481268 is about 1568.1842055257.

The spelling of 3856481268 in words is "three billion, eight hundred fifty-six million, four hundred eighty-one thousand, two hundred sixty-eight".