82779345796 has 27 divisors (see below), whose sum is σ = 168523297047. Its totient is φ = 35475136200.

The previous prime is 82779345769. The next prime is 82779345799. The reversal of 82779345796 is 69754397728.

The square root of 82779345796 is 287714.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (82779345799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4017721 + ... + 4038271.

Almost surely, 2^82779345796 is an apocalyptic number.

82779345796 is the 287714-th square number.

It is an amenable number.

82779345796 is an abundant number, since it is smaller than the sum of its proper divisors (85743951251).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82779345796 is an frugal number, since it uses more digits than its factorization.

82779345796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41120 (or 20560 counting only the distinct ones).

The product of its digits is 160030080, while the sum is 67.

The spelling of 82779345796 in words is "eighty-two billion, seven hundred seventy-nine million, three hundred forty-five thousand, seven hundred ninety-six".