83983173857199 has 40 divisors (see below), whose sum is σ = 125579698852608. Its totient is φ = 55933739548560.

The previous prime is 83983173857039. The next prime is 83983173857269. The reversal of 83983173857199 is 99175837138938.

83983173857199 is a `hidden beast` number, since 8 + 3 + 9 + 8 + 3 + 1 + 7 + 38 + 571 + 9 + 9 = 666.

It is not a de Polignac number, because 83983173857199 - 2¹¹ = 83983173855151 is a prime.

It is a super-4 number, since 4×83983173857199⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83983173807199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2167456144 + ... + 2167494890.

Almost surely, 2^{83983173857199} is an apocalyptic number.

83983173857199 is a deficient number, since it is larger than the sum of its proper divisors (41596524995409).

83983173857199 is a wasteful number, since it uses less digits than its factorization.

83983173857199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64377 (or 64368 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 81.

The spelling of 83983173857199 in words is "eighty-three trillion, nine hundred eighty-three billion, one hundred seventy-three million, eight hundred fifty-seven thousand, one hundred ninety-nine".