834520025438 has 32 divisors (see below), whose sum is σ = 1439729268480. Its totient is φ = 358793064000.

The previous prime is 834520025431. The next prime is 834520025447.

It is a happy number.

834520025438 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 (834520025431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1318223 + ... + 1845738.

It is an arithmetic number, because the mean of its divisors is an integer number (44991539640).

Almost surely, 2^834520025438 is an apocalyptic number.

834520025438 is a deficient number, since it is larger than the sum of its proper divisors (605209243042).

834520025438 is a wasteful number, since it uses less digits than its factorization.

834520025438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164624.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 834520025438 in words is "eight hundred thirty-four billion, five hundred twenty million, twenty-five thousand, four hundred thirty-eight".