4072080857 has 18 divisors (see below), whose sum is σ = 4556422206. Its totient is φ = 3637445760.

The previous prime is 4072080851. The next prime is 4072080869. The reversal of 4072080857 is 7580802704.

It can be written as a sum of positive squares in 3 ways, for example, as 9803161 + 4062277696 = 3131^2 + 63736^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4072080857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4072080851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 149873 + ... + 174945.

It is an arithmetic number, because the mean of its divisors is an integer number (253134567).

Almost surely, 2^4072080857 is an apocalyptic number.

It is an amenable number.

4072080857 is a deficient number, since it is larger than the sum of its proper divisors (484341349).

4072080857 is a wasteful number, since it uses less digits than its factorization.

4072080857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25161 (or 25117 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 4072080857 is about 63812.8580851853. The cubic root of 4072080857 is about 1596.8794460513.

The spelling of 4072080857 in words is "four billion, seventy-two million, eighty thousand, eight hundred fifty-seven".