83511411538 has 4 divisors (see below), whose sum is σ = 125267117310. Its totient is φ = 41755705768.

The previous prime is 83511411497. The next prime is 83511411553.

83511411538 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82166502609 + 1344908929 = 286647^2 + 36673^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83511411538.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20877852883 + ... + 20877852886.

Almost surely, 2^83511411538 is an apocalyptic number.

83511411538 is a deficient number, since it is larger than the sum of its proper divisors (41755705772).

83511411538 is a wasteful number, since it uses less digits than its factorization.

83511411538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41755705771.

The product of its digits is 57600, while the sum is 40.

The spelling of 83511411538 in words is "eighty-three billion, five hundred eleven million, four hundred eleven thousand, five hundred thirty-eight".