82646206449 has 4 divisors (see below), whose sum is σ = 110194941936. Its totient is φ = 55097470964.

The previous prime is 82646206439. The next prime is 82646206463. The reversal of 82646206449 is 94460264628.

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 82646206449 - 2¹⁷ = 82646075377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82646206439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13774367739 + ... + 13774367744.

It is an arithmetic number, because the mean of its divisors is an integer number (27548735484).

Almost surely, 2^82646206449 is an apocalyptic number.

It is an amenable number.

82646206449 is a deficient number, since it is larger than the sum of its proper divisors (27548735487).

82646206449 is a wasteful number, since it uses less digits than its factorization.

82646206449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27548735486.

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 82646206449 in words is "eighty-two billion, six hundred forty-six million, two hundred six thousand, four hundred forty-nine".