4125857897 has 4 divisors (see below), whose sum is σ = 4715266176. Its totient is φ = 3536449620.

The previous prime is 4125857893. The next prime is 4125857899. The reversal of 4125857897 is 7987585214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4125857897 - 2² = 4125857893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4125857893) 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 3 ways as a sum of consecutive naturals, for example, 294704129 + ... + 294704142.

It is an arithmetic number, because the mean of its divisors is an integer number (1178816544).

Almost surely, 2^4125857897 is an apocalyptic number.

It is an amenable number.

4125857897 is a deficient number, since it is larger than the sum of its proper divisors (589408279).

4125857897 is an equidigital number, since it uses as much as digits as its factorization.

4125857897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589408278.

The product of its digits is 5644800, while the sum is 56.

The square root of 4125857897 is about 64232.8412651970. The cubic root of 4125857897 is about 1603.8783384661.

The spelling of 4125857897 in words is "four billion, one hundred twenty-five million, eight hundred fifty-seven thousand, eight hundred ninety-seven".