82067356641 has 4 divisors (see below), whose sum is σ = 109423142192. Its totient is φ = 54711571092.

The previous prime is 82067356633. The next prime is 82067356663. The reversal of 82067356641 is 14665376028.

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 not a de Polignac number, because 82067356641 - 2³ = 82067356633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82067356681) 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, 13677892771 + ... + 13677892776.

It is an arithmetic number, because the mean of its divisors is an integer number (27355785548).

Almost surely, 2^82067356641 is an apocalyptic number.

It is an amenable number.

82067356641 is a deficient number, since it is larger than the sum of its proper divisors (27355785551).

82067356641 is a wasteful number, since it uses less digits than its factorization.

82067356641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27355785550.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 82067356641 in words is "eighty-two billion, sixty-seven million, three hundred fifty-six thousand, six hundred forty-one".