834138288538 has 16 divisors (see below), whose sum is σ = 1254808998720. Its totient is φ = 415868838400.

The previous prime is 834138288523. The next prime is 834138288551. The reversal of 834138288538 is 835882831438.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8683833 + ... + 8779363.

It is an arithmetic number, because the mean of its divisors is an integer number (78425562420).

Almost surely, 2^834138288538 is an apocalyptic number.

834138288538 is a deficient number, since it is larger than the sum of its proper divisors (420670710182).

834138288538 is a wasteful number, since it uses less digits than its factorization.

834138288538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108053.

The product of its digits is 35389440, while the sum is 61.

The spelling of 834138288538 in words is "eight hundred thirty-four billion, one hundred thirty-eight million, two hundred eighty-eight thousand, five hundred thirty-eight".