82049389081 has 8 divisors (see below), whose sum is σ = 94219394400. Its totient is φ = 70664545440.

The previous prime is 82049389063. The next prime is 82049389139. The reversal of 82049389081 is 18098394028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82049389081 - 2¹⁷ = 82049258009 is a prime.

It is a super-2 number, since 2×82049389081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82049383081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196290196 + ... + 196290613.

It is an arithmetic number, because the mean of its divisors is an integer number (11777424300).

Almost surely, 2^82049389081 is an apocalyptic number.

It is an amenable number.

82049389081 is a deficient number, since it is larger than the sum of its proper divisors (12170005319).

82049389081 is a wasteful number, since it uses less digits than its factorization.

82049389081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392580839.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 82049389081 in words is "eighty-two billion, forty-nine million, three hundred eighty-nine thousand, eighty-one".