4078717720 has 128 divisors (see below), whose sum is σ = 11721024000. Its totient is φ = 1240243200.

The previous prime is 4078717667. The next prime is 4078717733. The reversal of 4078717720 is 277178704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110131 + ... + 142429.

It is an arithmetic number, because the mean of its divisors is an integer number (91570500).

Almost surely, 2^4078717720 is an apocalyptic number.

4078717720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078717720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5860512000).

4078717720 is an abundant number, since it is smaller than the sum of its proper divisors (7642306280).

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

4078717720 is a wasteful number, since it uses less digits than its factorization.

4078717720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32369 (or 32365 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 43.

The square root of 4078717720 is about 63864.8394658595. The cubic root of 4078717720 is about 1597.7465307878.

The spelling of 4078717720 in words is "four billion, seventy-eight million, seven hundred seventeen thousand, seven hundred twenty".