83539193866 has 16 divisors (see below), whose sum is σ = 125825404320. Its totient is φ = 41597627760.

The previous prime is 83539193861. The next prime is 83539193867. The reversal of 83539193866 is 66839193538.

It is a super-2 number, since 2×83539193866² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83539193861) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 660900 + ... + 777088.

It is an arithmetic number, because the mean of its divisors is an integer number (7864087770).

Almost surely, 2^83539193866 is an apocalyptic number.

83539193866 is a deficient number, since it is larger than the sum of its proper divisors (42286210454).

83539193866 is a wasteful number, since it uses less digits than its factorization.

83539193866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117669.

The product of its digits is 25194240, while the sum is 61.

The spelling of 83539193866 in words is "eighty-three billion, five hundred thirty-nine million, one hundred ninety-three thousand, eight hundred sixty-six".