831233332138 has 16 divisors (see below), whose sum is σ = 1360297431936. Its totient is φ = 377806267840.

The previous prime is 831233332099. The next prime is 831233332243.

It is a happy number.

831233332138 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 831233332138.

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, 1037506 + ... + 1654957.

It is an arithmetic number, because the mean of its divisors is an integer number (85018589496).

Almost surely, 2^831233332138 is an apocalyptic number.

831233332138 is a deficient number, since it is larger than the sum of its proper divisors (529064099798).

831233332138 is a wasteful number, since it uses less digits than its factorization.

831233332138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706509.

The product of its digits is 186624, while the sum is 40.

The spelling of 831233332138 in words is "eight hundred thirty-one billion, two hundred thirty-three million, three hundred thirty-two thousand, one hundred thirty-eight".