83605793508 has 18 divisors (see below), whose sum is σ = 211336867014. Its totient is φ = 27868597824.

The previous prime is 83605793507. The next prime is 83605793521. The reversal of 83605793508 is 80539750638.

It is a happy number.

83605793508 is a `hidden beast` number, since 8 + 3 + 60 + 5 + 79 + 3 + 508 = 666.

It can be written as a sum of positive squares in only one way, i.e., 63090387684 + 20515405824 = 251178^2 + 143232^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (83605793507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1161191541 + ... + 1161191612.

Almost surely, 2^83605793508 is an apocalyptic number.

It is an amenable number.

83605793508 is an abundant number, since it is smaller than the sum of its proper divisors (127731073506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83605793508 is a wasteful number, since it uses less digits than its factorization.

83605793508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322383163 (or 2322383158 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 83605793508 in words is "eighty-three billion, six hundred five million, seven hundred ninety-three thousand, five hundred eight".