82765922069 has 4 divisors (see below), whose sum is σ = 82855983840. Its totient is φ = 82675860300.

The previous prime is 82765922009. The next prime is 82765922089. The reversal of 82765922069 is 96022956728.

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 82765922069 - 2¹² = 82765917973 is a prime.

It is a super-2 number, since 2×82765922069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82765922009) 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, 45029507 + ... + 45031344.

It is an arithmetic number, because the mean of its divisors is an integer number (20713995960).

Almost surely, 2^82765922069 is an apocalyptic number.

It is an amenable number.

82765922069 is a deficient number, since it is larger than the sum of its proper divisors (90061771).

82765922069 is an equidigital number, since it uses as much as digits as its factorization.

82765922069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90061770.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 82765922069 in words is "eighty-two billion, seven hundred sixty-five million, nine hundred twenty-two thousand, sixty-nine".