4068978216 has 16 divisors (see below), whose sum is σ = 10172445600. Its totient is φ = 1356326064.

The previous prime is 4068978167. The next prime is 4068978217. The reversal of 4068978216 is 6128798604.

4068978216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4068978217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84770356 + ... + 84770403.

It is an arithmetic number, because the mean of its divisors is an integer number (635777850).

Almost surely, 2^4068978216 is an apocalyptic number.

It is an amenable number.

4068978216 is an abundant number, since it is smaller than the sum of its proper divisors (6103467384).

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

4068978216 is a wasteful number, since it uses less digits than its factorization.

4068978216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169540768 (or 169540764 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 4068978216 is about 63788.5429838306. The cubic root of 4068978216 is about 1596.4737728270.

The spelling of 4068978216 in words is "four billion, sixty-eight million, nine hundred seventy-eight thousand, two hundred sixteen".