82560367779 has 8 divisors (see below), whose sum is σ = 112640501952. Its totient is φ = 53760239400.

The previous prime is 82560367777. The next prime is 82560367781. The reversal of 82560367779 is 97776306528.

It is an interprime number because it is at equal distance from previous prime (82560367777) and next prime (82560367781).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82560367779 - 2¹ = 82560367777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82560367777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320001297 + ... + 320001554.

It is an arithmetic number, because the mean of its divisors is an integer number (14080062744).

Almost surely, 2^82560367779 is an apocalyptic number.

82560367779 is a deficient number, since it is larger than the sum of its proper divisors (30080134173).

82560367779 is a wasteful number, since it uses less digits than its factorization.

82560367779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640002897.

The product of its (nonzero) digits is 26671680, while the sum is 60.

The spelling of 82560367779 in words is "eighty-two billion, five hundred sixty million, three hundred sixty-seven thousand, seven hundred seventy-nine".