83563236538 has 8 divisors (see below), whose sum is σ = 125810821620. Its totient is φ = 41626296000.

The previous prime is 83563236509. The next prime is 83563236553.

83563236538 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 83530826289 + 32410249 = 289017^2 + 5693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77660463 + ... + 77661538.

Almost surely, 2^83563236538 is an apocalyptic number.

83563236538 is a deficient number, since it is larger than the sum of its proper divisors (42247585082).

83563236538 is a wasteful number, since it uses less digits than its factorization.

83563236538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155322272.

The product of its digits is 9331200, while the sum is 52.

The spelling of 83563236538 in words is "eighty-three billion, five hundred sixty-three million, two hundred thirty-six thousand, five hundred thirty-eight".