4205723157 has 24 divisors (see below), whose sum is σ = 6165641664. Its totient is φ = 2762250624.

The previous prime is 4205723111. The next prime is 4205723161. The reversal of 4205723157 is 7513275024.

4205723157 is a `hidden beast` number, since 4 + 2 + 0 + 572 + 31 + 57 = 666.

4205723157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4205723157 - 2²⁰ = 4204674581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4205723957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157458 + ... + 182220.

It is an arithmetic number, because the mean of its divisors is an integer number (256901736).

Almost surely, 2^4205723157 is an apocalyptic number.

It is an amenable number.

4205723157 is a deficient number, since it is larger than the sum of its proper divisors (1959918507).

4205723157 is a wasteful number, since it uses less digits than its factorization.

4205723157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25049 (or 25046 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 4205723157 is about 64851.5470671286. The cubic root of 4205723157 is about 1614.1611630411.

The spelling of 4205723157 in words is "four billion, two hundred five million, seven hundred twenty-three thousand, one hundred fifty-seven".