857523325758 has 128 divisors (see below), whose sum is σ = 2002670728704. Its totient is φ = 241901568000.

The previous prime is 857523325753. The next prime is 857523325783.

857523325758 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857523325753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130656985 + ... + 130663547.

It is an arithmetic number, because the mean of its divisors is an integer number (15645865068).

Almost surely, 2^857523325758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857523325758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001335364352).

857523325758 is an abundant number, since it is smaller than the sum of its proper divisors (1145147402946).

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

857523325758 is a wasteful number, since it uses less digits than its factorization.

857523325758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850.

The product of its digits is 70560000, while the sum is 60.

The spelling of 857523325758 in words is "eight hundred fifty-seven billion, five hundred twenty-three million, three hundred twenty-five thousand, seven hundred fifty-eight".