83443425261 has 16 divisors (see below), whose sum is σ = 127157865600. Its totient is φ = 47679715008.

The previous prime is 83443425257. The next prime is 83443425287. The reversal of 83443425261 is 16252434438.

It is not a de Polignac number, because 83443425261 - 2² = 83443425257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83443427261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432655 + ... + 595043.

It is an arithmetic number, because the mean of its divisors is an integer number (7947366600).

Almost surely, 2^83443425261 is an apocalyptic number.

It is an amenable number.

83443425261 is a deficient number, since it is larger than the sum of its proper divisors (43714440339).

83443425261 is a wasteful number, since it uses less digits than its factorization.

83443425261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186868.

The product of its digits is 552960, while the sum is 42.

Adding to 83443425261 its reverse (16252434438), we get a palindrome (99695859699).

The spelling of 83443425261 in words is "eighty-three billion, four hundred forty-three million, four hundred twenty-five thousand, two hundred sixty-one".