83834993439 has 14 divisors (see below), whose sum is σ = 125694991256. Its totient is φ = 55889995140.

The previous prime is 83834993393. The next prime is 83834993443. The reversal of 83834993439 is 93439943838.

83834993439 is a `hidden beast` number, since 8 + 3 + 83 + 499 + 34 + 39 = 666.

It is not a de Polignac number, because 83834993439 - 2⁸ = 83834993183 is a prime.

It is a super-2 number, since 2×83834993439² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83834993479) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 57499267 + ... + 57500724.

Almost surely, 2^83834993439 is an apocalyptic number.

83834993439 is a deficient number, since it is larger than the sum of its proper divisors (41859997817).

83834993439 is an equidigital number, since it uses as much as digits as its factorization.

83834993439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115000009 (or 114999994 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 63.

The spelling of 83834993439 in words is "eighty-three billion, eight hundred thirty-four million, nine hundred ninety-three thousand, four hundred thirty-nine".