82642083841 has 4 divisors (see below), whose sum is σ = 85491810900. Its totient is φ = 79792356784.

The previous prime is 82642083791. The next prime is 82642083847. The reversal of 82642083841 is 14838024628.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66523242241 + 16118841600 = 257921^2 + 126960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82642083841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82642083791 and 82642083800.

It is not an unprimeable number, because it can be changed into a prime (82642083847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424863486 + ... + 1424863543.

It is an arithmetic number, because the mean of its divisors is an integer number (21372952725).

Almost surely, 2^82642083841 is an apocalyptic number.

It is an amenable number.

82642083841 is a deficient number, since it is larger than the sum of its proper divisors (2849727059).

82642083841 is a wasteful number, since it uses less digits than its factorization.

82642083841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849727058.

The product of its (nonzero) digits is 589824, while the sum is 46.

The spelling of 82642083841 in words is "eighty-two billion, six hundred forty-two million, eighty-three thousand, eight hundred forty-one".