4376778368 has 64 divisors (see below), whose sum is σ = 9212313600. Its totient is φ = 2067889152.

The previous prime is 4376778361. The next prime is 4376778377. The reversal of 4376778368 is 8638776734.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (4376778361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161921 + ... + 187007.

It is an arithmetic number, because the mean of its divisors is an integer number (143942400).

Almost surely, 2^4376778368 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 4376778368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4606156800).

4376778368 is an abundant number, since it is smaller than the sum of its proper divisors (4835535232).

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

4376778368 is a wasteful number, since it uses less digits than its factorization.

4376778368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25177 (or 25165 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 59.

The square root of 4376778368 is about 66157.2246092594. The cubic root of 4376778368 is about 1635.7547311566.

The spelling of 4376778368 in words is "four billion, three hundred seventy-six million, seven hundred seventy-eight thousand, three hundred sixty-eight".