83840442601 has 4 divisors (see below), whose sum is σ = 83931673600. Its totient is φ = 83749211604.

The previous prime is 83840442599. The next prime is 83840442629. The reversal of 83840442601 is 10624404838.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83840442601 - 2¹ = 83840442599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83840442641) 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 3 ways as a sum of consecutive naturals, for example, 45614121 + ... + 45615958.

It is an arithmetic number, because the mean of its divisors is an integer number (20982918400).

Almost surely, 2^83840442601 is an apocalyptic number.

It is an amenable number.

83840442601 is a deficient number, since it is larger than the sum of its proper divisors (91230999).

83840442601 is an equidigital number, since it uses as much as digits as its factorization.

83840442601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91230998.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 83840442601 in words is "eighty-three billion, eight hundred forty million, four hundred forty-two thousand, six hundred one".