82420941791 has 8 divisors (see below), whose sum is σ = 82835274000. Its totient is φ = 82007476992.

The previous prime is 82420941751. The next prime is 82420941803. The reversal of 82420941791 is 19714902428.

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 82420941791 - 2²⁶ = 82353832927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82420941721) 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, 25916 + ... + 406833.

It is an arithmetic number, because the mean of its divisors is an integer number (10354409250).

Almost surely, 2^82420941791 is an apocalyptic number.

82420941791 is a deficient number, since it is larger than the sum of its proper divisors (414332209).

82420941791 is a wasteful number, since it uses less digits than its factorization.

82420941791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433705.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 82420941791 in words is "eighty-two billion, four hundred twenty million, nine hundred forty-one thousand, seven hundred ninety-one".