82819993667 has 4 divisors (see below), whose sum is σ = 83817825000. Its totient is φ = 81822162336.

The previous prime is 82819993657. The next prime is 82819993673. The reversal of 82819993667 is 76639991828.

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

It is a cyclic number.

It is not a de Polignac number, because 82819993667 - 2⁸ = 82819993411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82819993597 and 82819993606.

It is not an unprimeable number, because it can be changed into a prime (82819993657) 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, 498915542 + ... + 498915707.

It is an arithmetic number, because the mean of its divisors is an integer number (20954456250).

Almost surely, 2^82819993667 is an apocalyptic number.

82819993667 is a deficient number, since it is larger than the sum of its proper divisors (997831333).

82819993667 is an equidigital number, since it uses as much as digits as its factorization.

82819993667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997831332.

The product of its digits is 70543872, while the sum is 68.

The spelling of 82819993667 in words is "eighty-two billion, eight hundred nineteen million, nine hundred ninety-three thousand, six hundred sixty-seven".