3855913216 has 27 divisors (see below), whose sum is σ = 7698747973. Its totient is φ = 1927459840.

The previous prime is 3855913169. The next prime is 3855913231. The reversal of 3855913216 is 6123195583.

The square root of 3855913216 is 62096.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2430095616 + 1425817600 = 49296^2 + 37760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 991596 + ... + 995476.

Almost surely, 2^3855913216 is an apocalyptic number.

3855913216 is the 62096-th square number.

It is an amenable number.

3855913216 is a deficient number, since it is larger than the sum of its proper divisors (3842834757).

3855913216 is an frugal number, since it uses more digits than its factorization.

3855913216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778 (or 3883 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The cubic root of 3855913216 is about 1568.1072049428.

The spelling of 3855913216 in words is "three billion, eight hundred fifty-five million, nine hundred thirteen thousand, two hundred sixteen".