4078631172 has 96 divisors (see below), whose sum is σ = 11927107584. Its totient is φ = 1053849600.

The previous prime is 4078631111. The next prime is 4078631173. The reversal of 4078631172 is 2711368704.

4078631172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4078631172.

It is not an unprimeable number, because it can be changed into a prime (4078631173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166897 + ... + 189767.

It is an arithmetic number, because the mean of its divisors is an integer number (124240704).

Almost surely, 2^4078631172 is an apocalyptic number.

4078631172 is a gapful number since it is divisible by the number (42) 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 4078631172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5963553792).

4078631172 is an abundant number, since it is smaller than the sum of its proper divisors (7848476412).

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

4078631172 is a wasteful number, since it uses less digits than its factorization.

4078631172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23089 (or 23087 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 4078631172 is about 63864.1618750297. The cubic root of 4078631172 is about 1597.7352296262.

Adding to 4078631172 its reverse (2711368704), we get a palindrome (6789999876).

The spelling of 4078631172 in words is "four billion, seventy-eight million, six hundred thirty-one thousand, one hundred seventy-two".