3856479968 has 96 divisors (see below), whose sum is σ = 8404881408. Its totient is φ = 1727308800.

The previous prime is 3856479961. The next prime is 3856479997. The reversal of 3856479968 is 8699746583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856479961) 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, 12561671 + ... + 12561977.

It is an arithmetic number, because the mean of its divisors is an integer number (87550848).

Almost surely, 2^3856479968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3856479968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4202440704).

3856479968 is an abundant number, since it is smaller than the sum of its proper divisors (4548401440).

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

3856479968 is a wasteful number, since it uses less digits than its factorization.

3856479968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 728 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 65.

The square root of 3856479968 is about 62100.5633468812. The cubic root of 3856479968 is about 1568.1840293167.

The spelling of 3856479968 in words is "three billion, eight hundred fifty-six million, four hundred seventy-nine thousand, nine hundred sixty-eight".